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Add COST and ROWS options to CREATE/ALTER FUNCTION, plus underlying pg_proc
columns procost and prorows, to allow simple user adjustment of the estimated cost of a function call, as well as control of the estimated number of rows returned by a set-returning function. We might eventually wish to extend this to allow function-specific estimation routines, but there seems to be consensus that we should try a simple constant estimate first. In particular this provides a relatively simple way to control the order in which different WHERE clauses are applied in a plan node, which is a Good Thing in view of the fact that the recent EquivalenceClass planner rewrite made that much less predictable than before.
This commit is contained in:
Tom Lane
parent
a85e9c61e5
commit
5a7471c307
@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.142 2007/01/20 23:13:01 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.143 2007/01/22 01:35:19 tgl Exp $ -->
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<!--
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Documentation of the system catalogs, directed toward PostgreSQL developers
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-->
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@ -3375,6 +3375,22 @@
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<entry>Implementation language or call interface of this function</entry>
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</row>
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<row>
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<entry><structfield>procost</structfield></entry>
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<entry><type>float4</type></entry>
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<entry></entry>
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<entry>Estimated execution cost (in units of
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<xref linkend="guc-cpu-operator-cost">); if <structfield>proretset</>,
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this is cost per row returned</entry>
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</row>
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<row>
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<entry><structfield>prorows</structfield></entry>
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<entry><type>float4</type></entry>
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<entry></entry>
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<entry>Estimated number of result rows (zero if not <structfield>proretset</>)</entry>
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</row>
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<row>
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<entry><structfield>proisagg</structfield></entry>
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<entry><type>bool</type></entry>
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@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/alter_function.sgml,v 1.12 2006/09/16 00:30:16 momjian Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/alter_function.sgml,v 1.13 2007/01/22 01:35:19 tgl Exp $
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PostgreSQL documentation
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-->
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@ -34,6 +34,8 @@ where <replaceable class="PARAMETER">action</replaceable> is one of:
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CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT
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IMMUTABLE | STABLE | VOLATILE
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[ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
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COST <replaceable class="parameter">execution_cost</replaceable>
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ROWS <replaceable class="parameter">result_rows</replaceable>
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</synopsis>
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</refsynopsisdiv>
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@ -186,6 +188,30 @@ where <replaceable class="PARAMETER">action</replaceable> is one of:
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>COST</literal> <replaceable class="parameter">execution_cost</replaceable></term>
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<listitem>
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<para>
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Change the estimated execution cost of the function.
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See <xref linkend="sql-createfunction"
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endterm="sql-createfunction-title"> for more information.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>ROWS</literal> <replaceable class="parameter">result_rows</replaceable></term>
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<listitem>
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<para>
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Change the estimated number of rows returned by a set-returning
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function. See <xref linkend="sql-createfunction"
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endterm="sql-createfunction-title"> for more information.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>RESTRICT</literal></term>
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@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.70 2006/11/10 20:52:18 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.71 2007/01/22 01:35:19 tgl Exp $
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-->
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<refentry id="SQL-CREATEFUNCTION">
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@ -26,6 +26,8 @@ CREATE [ OR REPLACE ] FUNCTION
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| IMMUTABLE | STABLE | VOLATILE
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| CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT
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| [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
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| COST <replaceable class="parameter">execution_cost</replaceable>
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| ROWS <replaceable class="parameter">result_rows</replaceable>
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| AS '<replaceable class="parameter">definition</replaceable>'
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| AS '<replaceable class="parameter">obj_file</replaceable>', '<replaceable class="parameter">link_symbol</replaceable>'
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} ...
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@ -52,7 +54,7 @@ CREATE [ OR REPLACE ] FUNCTION
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</para>
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<para>
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To update the definition of an existing function, use
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To replace the current definition of an existing function, use
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<command>CREATE OR REPLACE FUNCTION</command>. It is not possible
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to change the name or argument types of a function this way (if you
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tried, you would actually be creating a new, distinct function).
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@ -289,6 +291,35 @@ CREATE [ OR REPLACE ] FUNCTION
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">execution_cost</replaceable></term>
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<listitem>
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<para>
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A positive number giving the estimated execution cost for the function,
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in units of <xref linkend="guc-cpu-operator-cost">. If the function
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returns a set, this is the cost per returned row. If the cost is
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not specified, 1 unit is assumed for C-language and internal functions,
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and 100 units for functions in all other languages. Larger values
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cause the planner to try to avoid evaluating the function more often
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than necessary.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">result_rows</replaceable></term>
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<listitem>
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<para>
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A positive number giving the estimated number of rows that the planner
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should expect the function to return. This is only allowed when the
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function is declared to return a set. The default assumption is
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1000 rows.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">definition</replaceable></term>
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@ -400,7 +431,8 @@ CREATE FUNCTION foo(int, out text) ...
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<para>
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When repeated <command>CREATE FUNCTION</command> calls refer to
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the same object file, the file is only loaded once. To unload and
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the same object file, the file is only loaded once per session.
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To unload and
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reload the file (perhaps during development), use the <xref
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linkend="sql-load" endterm="sql-load-title"> command.
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</para>
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@ -8,7 +8,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.228 2007/01/05 22:19:24 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/bootstrap/bootstrap.c,v 1.229 2007/01/22 01:35:19 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -115,16 +115,18 @@ static const struct typinfo TypInfo[] = {
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F_BYTEAIN, F_BYTEAOUT},
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{"char", CHAROID, 0, 1, true, 'c', 'p',
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F_CHARIN, F_CHAROUT},
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{"name", NAMEOID, CHAROID, NAMEDATALEN, false, 'i', 'p',
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F_NAMEIN, F_NAMEOUT},
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{"int2", INT2OID, 0, 2, true, 's', 'p',
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F_INT2IN, F_INT2OUT},
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{"int4", INT4OID, 0, 4, true, 'i', 'p',
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F_INT4IN, F_INT4OUT},
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{"regproc", REGPROCOID, 0, 4, true, 'i', 'p',
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F_REGPROCIN, F_REGPROCOUT},
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{"float4", FLOAT4OID, 0, 4, false, 'i', 'p',
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F_FLOAT4IN, F_FLOAT4OUT},
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{"name", NAMEOID, CHAROID, NAMEDATALEN, false, 'i', 'p',
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F_NAMEIN, F_NAMEOUT},
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{"regclass", REGCLASSOID, 0, 4, true, 'i', 'p',
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F_REGCLASSIN, F_REGCLASSOUT},
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{"regproc", REGPROCOID, 0, 4, true, 'i', 'p',
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F_REGPROCIN, F_REGPROCOUT},
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{"regtype", REGTYPEOID, 0, 4, true, 'i', 'p',
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F_REGTYPEIN, F_REGTYPEOUT},
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{"text", TEXTOID, 0, -1, false, 'i', 'x',
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.84 2007/01/05 22:19:25 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.85 2007/01/22 01:35:20 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -214,7 +214,9 @@ AggregateCreate(const char *aggName,
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numArgs), /* paramTypes */
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PointerGetDatum(NULL), /* allParamTypes */
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PointerGetDatum(NULL), /* parameterModes */
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PointerGetDatum(NULL)); /* parameterNames */
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PointerGetDatum(NULL), /* parameterNames */
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1, /* procost */
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0); /* prorows */
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/*
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* Okay to create the pg_aggregate entry.
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/catalog/pg_proc.c,v 1.142 2007/01/05 22:19:25 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/pg_proc.c,v 1.143 2007/01/22 01:35:20 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -71,7 +71,9 @@ ProcedureCreate(const char *procedureName,
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oidvector *parameterTypes,
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Datum allParameterTypes,
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Datum parameterModes,
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Datum parameterNames)
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Datum parameterNames,
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float4 procost,
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float4 prorows)
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{
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Oid retval;
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int parameterCount;
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@ -219,6 +221,8 @@ ProcedureCreate(const char *procedureName,
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values[Anum_pg_proc_pronamespace - 1] = ObjectIdGetDatum(procNamespace);
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values[Anum_pg_proc_proowner - 1] = ObjectIdGetDatum(GetUserId());
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values[Anum_pg_proc_prolang - 1] = ObjectIdGetDatum(languageObjectId);
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values[Anum_pg_proc_procost - 1] = Float4GetDatum(procost);
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values[Anum_pg_proc_prorows - 1] = Float4GetDatum(prorows);
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values[Anum_pg_proc_proisagg - 1] = BoolGetDatum(isAgg);
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values[Anum_pg_proc_prosecdef - 1] = BoolGetDatum(security_definer);
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values[Anum_pg_proc_proisstrict - 1] = BoolGetDatum(isStrict);
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@ -10,7 +10,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.81 2007/01/05 22:19:26 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.82 2007/01/22 01:35:20 tgl Exp $
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*
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* DESCRIPTION
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* These routines take the parse tree and pick out the
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@ -273,7 +273,9 @@ static bool
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compute_common_attribute(DefElem *defel,
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DefElem **volatility_item,
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DefElem **strict_item,
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DefElem **security_item)
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DefElem **security_item,
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DefElem **cost_item,
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DefElem **rows_item)
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{
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if (strcmp(defel->defname, "volatility") == 0)
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{
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@ -296,6 +298,20 @@ compute_common_attribute(DefElem *defel,
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*security_item = defel;
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}
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else if (strcmp(defel->defname, "cost") == 0)
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{
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if (*cost_item)
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goto duplicate_error;
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*cost_item = defel;
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}
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else if (strcmp(defel->defname, "rows") == 0)
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{
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if (*rows_item)
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goto duplicate_error;
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*rows_item = defel;
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}
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else
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return false;
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@ -337,7 +353,9 @@ compute_attributes_sql_style(List *options,
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char **language,
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char *volatility_p,
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bool *strict_p,
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bool *security_definer)
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bool *security_definer,
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float4 *procost,
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float4 *prorows)
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{
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ListCell *option;
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DefElem *as_item = NULL;
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@ -345,6 +363,8 @@ compute_attributes_sql_style(List *options,
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DefElem *volatility_item = NULL;
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DefElem *strict_item = NULL;
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DefElem *security_item = NULL;
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DefElem *cost_item = NULL;
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DefElem *rows_item = NULL;
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foreach(option, options)
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{
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@ -369,7 +389,9 @@ compute_attributes_sql_style(List *options,
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else if (compute_common_attribute(defel,
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&volatility_item,
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&strict_item,
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&security_item))
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&security_item,
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&cost_item,
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&rows_item))
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{
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/* recognized common option */
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continue;
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@ -407,6 +429,22 @@ compute_attributes_sql_style(List *options,
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*strict_p = intVal(strict_item->arg);
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if (security_item)
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*security_definer = intVal(security_item->arg);
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if (cost_item)
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{
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*procost = defGetNumeric(cost_item);
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if (*procost <= 0)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("COST must be positive")));
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}
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if (rows_item)
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{
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*prorows = defGetNumeric(rows_item);
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if (*prorows <= 0)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("ROWS must be positive")));
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}
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}
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@ -519,6 +557,8 @@ CreateFunction(CreateFunctionStmt *stmt)
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bool isStrict,
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security;
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char volatility;
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float4 procost;
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float4 prorows;
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HeapTuple languageTuple;
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Form_pg_language languageStruct;
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List *as_clause;
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@ -537,10 +577,14 @@ CreateFunction(CreateFunctionStmt *stmt)
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isStrict = false;
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security = false;
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volatility = PROVOLATILE_VOLATILE;
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procost = -1; /* indicates not set */
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prorows = -1; /* indicates not set */
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/* override attributes from explicit list */
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compute_attributes_sql_style(stmt->options,
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&as_clause, &language, &volatility, &isStrict, &security);
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&as_clause, &language,
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&volatility, &isStrict, &security,
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&procost, &prorows);
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/* Convert language name to canonical case */
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languageName = case_translate_language_name(language);
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@ -645,6 +689,32 @@ CreateFunction(CreateFunctionStmt *stmt)
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prosrc_str = funcname;
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}
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/*
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* Set default values for COST and ROWS depending on other parameters;
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* reject ROWS if it's not returnsSet. NB: pg_dump knows these default
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* values, keep it in sync if you change them.
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*/
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if (procost < 0)
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{
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/* SQL and PL-language functions are assumed more expensive */
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if (languageOid == INTERNALlanguageId ||
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languageOid == ClanguageId)
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procost = 1;
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else
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procost = 100;
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}
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if (prorows < 0)
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{
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if (returnsSet)
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prorows = 1000;
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else
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prorows = 0; /* dummy value if not returnsSet */
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}
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else if (!returnsSet)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("ROWS is not applicable when function does not return a set")));
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/*
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* And now that we have all the parameters, and know we're permitted to do
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* so, go ahead and create the function.
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@ -665,7 +735,9 @@ CreateFunction(CreateFunctionStmt *stmt)
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parameterTypes,
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PointerGetDatum(allParameterTypes),
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PointerGetDatum(parameterModes),
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PointerGetDatum(parameterNames));
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PointerGetDatum(parameterNames),
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procost,
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prorows);
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}
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@ -1012,6 +1084,8 @@ AlterFunction(AlterFunctionStmt *stmt)
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DefElem *volatility_item = NULL;
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DefElem *strict_item = NULL;
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DefElem *security_def_item = NULL;
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DefElem *cost_item = NULL;
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DefElem *rows_item = NULL;
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rel = heap_open(ProcedureRelationId, RowExclusiveLock);
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@ -1046,7 +1120,9 @@ AlterFunction(AlterFunctionStmt *stmt)
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if (compute_common_attribute(defel,
|
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&volatility_item,
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&strict_item,
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&security_def_item) == false)
|
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&security_def_item,
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&cost_item,
|
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&rows_item) == false)
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elog(ERROR, "option \"%s\" not recognized", defel->defname);
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}
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@ -1056,6 +1132,26 @@ AlterFunction(AlterFunctionStmt *stmt)
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procForm->proisstrict = intVal(strict_item->arg);
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if (security_def_item)
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procForm->prosecdef = intVal(security_def_item->arg);
|
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if (cost_item)
|
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{
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procForm->procost = defGetNumeric(cost_item);
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if (procForm->procost <= 0)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("COST must be positive")));
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}
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if (rows_item)
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{
|
||||
procForm->prorows = defGetNumeric(rows_item);
|
||||
if (procForm->prorows <= 0)
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
||||
errmsg("ROWS must be positive")));
|
||||
if (!procForm->proretset)
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
||||
errmsg("ROWS is not applicable when function does not return a set")));
|
||||
}
|
||||
|
||||
/* Do the update */
|
||||
simple_heap_update(rel, &tup->t_self, tup);
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/commands/proclang.c,v 1.70 2007/01/05 22:19:26 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/commands/proclang.c,v 1.71 2007/01/22 01:35:20 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -130,7 +130,9 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
|
||||
buildoidvector(funcargtypes, 0),
|
||||
PointerGetDatum(NULL),
|
||||
PointerGetDatum(NULL),
|
||||
PointerGetDatum(NULL));
|
||||
PointerGetDatum(NULL),
|
||||
1,
|
||||
0);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -160,7 +162,9 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
|
||||
buildoidvector(funcargtypes, 1),
|
||||
PointerGetDatum(NULL),
|
||||
PointerGetDatum(NULL),
|
||||
PointerGetDatum(NULL));
|
||||
PointerGetDatum(NULL),
|
||||
1,
|
||||
0);
|
||||
}
|
||||
}
|
||||
else
|
||||
|
||||
@ -54,7 +54,7 @@
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.175 2007/01/20 20:45:38 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.176 2007/01/22 01:35:20 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -68,6 +68,7 @@
|
||||
#include "optimizer/clauses.h"
|
||||
#include "optimizer/cost.h"
|
||||
#include "optimizer/pathnode.h"
|
||||
#include "optimizer/planmain.h"
|
||||
#include "parser/parsetree.h"
|
||||
#include "utils/lsyscache.h"
|
||||
#include "utils/selfuncs.h"
|
||||
@ -842,17 +843,19 @@ cost_functionscan(Path *path, PlannerInfo *root, RelOptInfo *baserel)
|
||||
Cost startup_cost = 0;
|
||||
Cost run_cost = 0;
|
||||
Cost cpu_per_tuple;
|
||||
RangeTblEntry *rte;
|
||||
QualCost exprcost;
|
||||
|
||||
/* Should only be applied to base relations that are functions */
|
||||
Assert(baserel->relid > 0);
|
||||
Assert(baserel->rtekind == RTE_FUNCTION);
|
||||
rte = rt_fetch(baserel->relid, root->parse->rtable);
|
||||
Assert(rte->rtekind == RTE_FUNCTION);
|
||||
|
||||
/*
|
||||
* For now, estimate function's cost at one operator eval per function
|
||||
* call. Someday we should revive the function cost estimate columns in
|
||||
* pg_proc...
|
||||
*/
|
||||
cpu_per_tuple = cpu_operator_cost;
|
||||
/* Estimate costs of executing the function expression */
|
||||
cost_qual_eval_node(&exprcost, rte->funcexpr);
|
||||
|
||||
startup_cost += exprcost.startup;
|
||||
cpu_per_tuple = exprcost.per_tuple;
|
||||
|
||||
/* Add scanning CPU costs */
|
||||
startup_cost += baserel->baserestrictcost.startup;
|
||||
@ -1068,6 +1071,10 @@ cost_agg(Path *path, PlannerInfo *root,
|
||||
* there's roundoff error we might do the wrong thing. So be sure that
|
||||
* the computations below form the same intermediate values in the same
|
||||
* order.
|
||||
*
|
||||
* Note: ideally we should use the pg_proc.procost costs of each
|
||||
* aggregate's component functions, but for now that seems like an
|
||||
* excessive amount of work.
|
||||
*/
|
||||
if (aggstrategy == AGG_PLAIN)
|
||||
{
|
||||
@ -1694,7 +1701,8 @@ cost_hashjoin(HashPath *path, PlannerInfo *root)
|
||||
* cost_qual_eval
|
||||
* Estimate the CPU costs of evaluating a WHERE clause.
|
||||
* The input can be either an implicitly-ANDed list of boolean
|
||||
* expressions, or a list of RestrictInfo nodes.
|
||||
* expressions, or a list of RestrictInfo nodes. (The latter is
|
||||
* preferred since it allows caching of the results.)
|
||||
* The result includes both a one-time (startup) component,
|
||||
* and a per-evaluation component.
|
||||
*/
|
||||
@ -1712,43 +1720,22 @@ cost_qual_eval(QualCost *cost, List *quals)
|
||||
{
|
||||
Node *qual = (Node *) lfirst(l);
|
||||
|
||||
/*
|
||||
* RestrictInfo nodes contain an eval_cost field reserved for this
|
||||
* routine's use, so that it's not necessary to evaluate the qual
|
||||
* clause's cost more than once. If the clause's cost hasn't been
|
||||
* computed yet, the field's startup value will contain -1.
|
||||
*
|
||||
* If the RestrictInfo is marked pseudoconstant, it will be tested
|
||||
* only once, so treat its cost as all startup cost.
|
||||
*/
|
||||
if (qual && IsA(qual, RestrictInfo))
|
||||
{
|
||||
RestrictInfo *rinfo = (RestrictInfo *) qual;
|
||||
|
||||
if (rinfo->eval_cost.startup < 0)
|
||||
{
|
||||
rinfo->eval_cost.startup = 0;
|
||||
rinfo->eval_cost.per_tuple = 0;
|
||||
cost_qual_eval_walker((Node *) rinfo->clause,
|
||||
&rinfo->eval_cost);
|
||||
if (rinfo->pseudoconstant)
|
||||
{
|
||||
/* count one execution during startup */
|
||||
rinfo->eval_cost.startup += rinfo->eval_cost.per_tuple;
|
||||
rinfo->eval_cost.per_tuple = 0;
|
||||
}
|
||||
}
|
||||
cost->startup += rinfo->eval_cost.startup;
|
||||
cost->per_tuple += rinfo->eval_cost.per_tuple;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* If it's a bare expression, must always do it the hard way */
|
||||
cost_qual_eval_walker(qual, cost);
|
||||
}
|
||||
cost_qual_eval_walker(qual, cost);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* cost_qual_eval_node
|
||||
* As above, for a single RestrictInfo or expression.
|
||||
*/
|
||||
void
|
||||
cost_qual_eval_node(QualCost *cost, Node *qual)
|
||||
{
|
||||
cost->startup = 0;
|
||||
cost->per_tuple = 0;
|
||||
cost_qual_eval_walker(qual, cost);
|
||||
}
|
||||
|
||||
static bool
|
||||
cost_qual_eval_walker(Node *node, QualCost *total)
|
||||
{
|
||||
@ -1756,19 +1743,75 @@ cost_qual_eval_walker(Node *node, QualCost *total)
|
||||
return false;
|
||||
|
||||
/*
|
||||
* Our basic strategy is to charge one cpu_operator_cost for each operator
|
||||
* or function node in the given tree. Vars and Consts are charged zero,
|
||||
* and so are boolean operators (AND, OR, NOT). Simplistic, but a lot
|
||||
* better than no model at all.
|
||||
* RestrictInfo nodes contain an eval_cost field reserved for this
|
||||
* routine's use, so that it's not necessary to evaluate the qual
|
||||
* clause's cost more than once. If the clause's cost hasn't been
|
||||
* computed yet, the field's startup value will contain -1.
|
||||
*/
|
||||
if (IsA(node, RestrictInfo))
|
||||
{
|
||||
RestrictInfo *rinfo = (RestrictInfo *) node;
|
||||
|
||||
if (rinfo->eval_cost.startup < 0)
|
||||
{
|
||||
rinfo->eval_cost.startup = 0;
|
||||
rinfo->eval_cost.per_tuple = 0;
|
||||
/*
|
||||
* For an OR clause, recurse into the marked-up tree so that
|
||||
* we set the eval_cost for contained RestrictInfos too.
|
||||
*/
|
||||
if (rinfo->orclause)
|
||||
cost_qual_eval_walker((Node *) rinfo->orclause,
|
||||
&rinfo->eval_cost);
|
||||
else
|
||||
cost_qual_eval_walker((Node *) rinfo->clause,
|
||||
&rinfo->eval_cost);
|
||||
/*
|
||||
* If the RestrictInfo is marked pseudoconstant, it will be tested
|
||||
* only once, so treat its cost as all startup cost.
|
||||
*/
|
||||
if (rinfo->pseudoconstant)
|
||||
{
|
||||
/* count one execution during startup */
|
||||
rinfo->eval_cost.startup += rinfo->eval_cost.per_tuple;
|
||||
rinfo->eval_cost.per_tuple = 0;
|
||||
}
|
||||
}
|
||||
total->startup += rinfo->eval_cost.startup;
|
||||
total->per_tuple += rinfo->eval_cost.per_tuple;
|
||||
/* do NOT recurse into children */
|
||||
return false;
|
||||
}
|
||||
|
||||
/*
|
||||
* For each operator or function node in the given tree, we charge the
|
||||
* estimated execution cost given by pg_proc.procost (remember to
|
||||
* multiply this by cpu_operator_cost).
|
||||
*
|
||||
* Vars and Consts are charged zero, and so are boolean operators (AND,
|
||||
* OR, NOT). Simplistic, but a lot better than no model at all.
|
||||
*
|
||||
* Should we try to account for the possibility of short-circuit
|
||||
* evaluation of AND/OR?
|
||||
* evaluation of AND/OR? Probably *not*, because that would make the
|
||||
* results depend on the clause ordering, and we are not in any position
|
||||
* to expect that the current ordering of the clauses is the one that's
|
||||
* going to end up being used. (Is it worth applying order_qual_clauses
|
||||
* much earlier in the planning process to fix this?)
|
||||
*/
|
||||
if (IsA(node, FuncExpr) ||
|
||||
IsA(node, OpExpr) ||
|
||||
IsA(node, DistinctExpr) ||
|
||||
IsA(node, NullIfExpr))
|
||||
total->per_tuple += cpu_operator_cost;
|
||||
if (IsA(node, FuncExpr))
|
||||
{
|
||||
total->per_tuple += get_func_cost(((FuncExpr *) node)->funcid) *
|
||||
cpu_operator_cost;
|
||||
}
|
||||
else if (IsA(node, OpExpr) ||
|
||||
IsA(node, DistinctExpr) ||
|
||||
IsA(node, NullIfExpr))
|
||||
{
|
||||
/* rely on struct equivalence to treat these all alike */
|
||||
set_opfuncid((OpExpr *) node);
|
||||
total->per_tuple += get_func_cost(((OpExpr *) node)->opfuncid) *
|
||||
cpu_operator_cost;
|
||||
}
|
||||
else if (IsA(node, ScalarArrayOpExpr))
|
||||
{
|
||||
/*
|
||||
@ -1778,15 +1821,23 @@ cost_qual_eval_walker(Node *node, QualCost *total)
|
||||
ScalarArrayOpExpr *saop = (ScalarArrayOpExpr *) node;
|
||||
Node *arraynode = (Node *) lsecond(saop->args);
|
||||
|
||||
total->per_tuple +=
|
||||
set_sa_opfuncid(saop);
|
||||
total->per_tuple += get_func_cost(saop->opfuncid) *
|
||||
cpu_operator_cost * estimate_array_length(arraynode) * 0.5;
|
||||
}
|
||||
else if (IsA(node, RowCompareExpr))
|
||||
{
|
||||
/* Conservatively assume we will check all the columns */
|
||||
RowCompareExpr *rcexpr = (RowCompareExpr *) node;
|
||||
ListCell *lc;
|
||||
|
||||
total->per_tuple += cpu_operator_cost * list_length(rcexpr->opnos);
|
||||
foreach(lc, rcexpr->opnos)
|
||||
{
|
||||
Oid opid = lfirst_oid(lc);
|
||||
|
||||
total->per_tuple += get_func_cost(get_opcode(opid)) *
|
||||
cpu_operator_cost;
|
||||
}
|
||||
}
|
||||
else if (IsA(node, SubLink))
|
||||
{
|
||||
@ -1873,6 +1924,7 @@ cost_qual_eval_walker(Node *node, QualCost *total)
|
||||
}
|
||||
}
|
||||
|
||||
/* recurse into children */
|
||||
return expression_tree_walker(node, cost_qual_eval_walker,
|
||||
(void *) total);
|
||||
}
|
||||
@ -2172,16 +2224,8 @@ set_function_size_estimates(PlannerInfo *root, RelOptInfo *rel)
|
||||
rte = rt_fetch(rel->relid, root->parse->rtable);
|
||||
Assert(rte->rtekind == RTE_FUNCTION);
|
||||
|
||||
/*
|
||||
* Estimate number of rows the function itself will return.
|
||||
*
|
||||
* XXX no idea how to do this yet; but we can at least check whether
|
||||
* function returns set or not...
|
||||
*/
|
||||
if (expression_returns_set(rte->funcexpr))
|
||||
rel->tuples = 1000;
|
||||
else
|
||||
rel->tuples = 1;
|
||||
/* Estimate number of rows the function itself will return */
|
||||
rel->tuples = clamp_row_est(expression_returns_set_rows(rte->funcexpr));
|
||||
|
||||
/* Now estimate number of output rows, etc */
|
||||
set_baserel_size_estimates(root, rel);
|
||||
|
||||
@ -10,7 +10,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.222 2007/01/20 20:45:39 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.223 2007/01/22 01:35:20 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -411,14 +411,15 @@ create_gating_plan(PlannerInfo *root, Plan *plan, List *quals)
|
||||
{
|
||||
List *pseudoconstants;
|
||||
|
||||
/* Sort into desirable execution order while still in RestrictInfo form */
|
||||
quals = order_qual_clauses(root, quals);
|
||||
|
||||
/* Pull out any pseudoconstant quals from the RestrictInfo list */
|
||||
pseudoconstants = extract_actual_clauses(quals, true);
|
||||
|
||||
if (!pseudoconstants)
|
||||
return plan;
|
||||
|
||||
pseudoconstants = order_qual_clauses(root, pseudoconstants);
|
||||
|
||||
return (Plan *) make_result((List *) copyObject(plan->targetlist),
|
||||
(Node *) pseudoconstants,
|
||||
plan);
|
||||
@ -553,6 +554,8 @@ create_result_plan(PlannerInfo *root, ResultPath *best_path)
|
||||
Assert(best_path->path.parent == NULL);
|
||||
tlist = NIL;
|
||||
|
||||
/* best_path->quals is just bare clauses */
|
||||
|
||||
quals = order_qual_clauses(root, best_path->quals);
|
||||
|
||||
return make_result(tlist, (Node *) quals, NULL);
|
||||
@ -810,12 +813,12 @@ create_seqscan_plan(PlannerInfo *root, Path *best_path,
|
||||
Assert(scan_relid > 0);
|
||||
Assert(best_path->parent->rtekind == RTE_RELATION);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
scan_plan = make_seqscan(tlist,
|
||||
scan_clauses,
|
||||
scan_relid);
|
||||
@ -916,10 +919,6 @@ create_indexscan_plan(PlannerInfo *root,
|
||||
* predicate, but only in a plain SELECT; when scanning a target relation
|
||||
* of UPDATE/DELETE/SELECT FOR UPDATE, we must leave such quals in the
|
||||
* plan so that they'll be properly rechecked by EvalPlanQual testing.
|
||||
*
|
||||
* While at it, we strip off the RestrictInfos to produce a list of plain
|
||||
* expressions (this loop replaces extract_actual_clauses used in the
|
||||
* other routines in this file). We have to ignore pseudoconstants.
|
||||
*/
|
||||
qpqual = NIL;
|
||||
foreach(l, scan_clauses)
|
||||
@ -928,7 +927,7 @@ create_indexscan_plan(PlannerInfo *root,
|
||||
|
||||
Assert(IsA(rinfo, RestrictInfo));
|
||||
if (rinfo->pseudoconstant)
|
||||
continue;
|
||||
continue; /* we may drop pseudoconstants here */
|
||||
if (list_member_ptr(nonlossy_indexquals, rinfo))
|
||||
continue;
|
||||
if (!contain_mutable_functions((Node *) rinfo->clause))
|
||||
@ -946,12 +945,15 @@ create_indexscan_plan(PlannerInfo *root,
|
||||
continue;
|
||||
}
|
||||
}
|
||||
qpqual = lappend(qpqual, rinfo->clause);
|
||||
qpqual = lappend(qpqual, rinfo);
|
||||
}
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
qpqual = order_qual_clauses(root, qpqual);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
qpqual = extract_actual_clauses(qpqual, false);
|
||||
|
||||
/* Finally ready to build the plan node */
|
||||
scan_plan = make_indexscan(tlist,
|
||||
qpqual,
|
||||
@ -1281,6 +1283,9 @@ create_tidscan_plan(PlannerInfo *root, TidPath *best_path,
|
||||
Assert(scan_relid > 0);
|
||||
Assert(best_path->path.parent->rtekind == RTE_RELATION);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
@ -1293,9 +1298,6 @@ create_tidscan_plan(PlannerInfo *root, TidPath *best_path,
|
||||
ortidquals = list_make1(make_orclause(ortidquals));
|
||||
scan_clauses = list_difference(scan_clauses, ortidquals);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
scan_plan = make_tidscan(tlist,
|
||||
scan_clauses,
|
||||
scan_relid,
|
||||
@ -1322,12 +1324,12 @@ create_subqueryscan_plan(PlannerInfo *root, Path *best_path,
|
||||
Assert(scan_relid > 0);
|
||||
Assert(best_path->parent->rtekind == RTE_SUBQUERY);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
scan_plan = make_subqueryscan(tlist,
|
||||
scan_clauses,
|
||||
scan_relid,
|
||||
@ -1354,12 +1356,12 @@ create_functionscan_plan(PlannerInfo *root, Path *best_path,
|
||||
Assert(scan_relid > 0);
|
||||
Assert(best_path->parent->rtekind == RTE_FUNCTION);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
scan_plan = make_functionscan(tlist, scan_clauses, scan_relid);
|
||||
|
||||
copy_path_costsize(&scan_plan->scan.plan, best_path);
|
||||
@ -1383,12 +1385,12 @@ create_valuesscan_plan(PlannerInfo *root, Path *best_path,
|
||||
Assert(scan_relid > 0);
|
||||
Assert(best_path->parent->rtekind == RTE_VALUES);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
scan_clauses = order_qual_clauses(root, scan_clauses);
|
||||
|
||||
/* Reduce RestrictInfo list to bare expressions; ignore pseudoconstants */
|
||||
scan_clauses = extract_actual_clauses(scan_clauses, false);
|
||||
|
||||
scan_plan = make_valuesscan(tlist, scan_clauses, scan_relid);
|
||||
|
||||
copy_path_costsize(&scan_plan->scan.plan, best_path);
|
||||
@ -1471,6 +1473,9 @@ create_nestloop_plan(PlannerInfo *root,
|
||||
}
|
||||
}
|
||||
|
||||
/* Sort join qual clauses into best execution order */
|
||||
joinrestrictclauses = order_qual_clauses(root, joinrestrictclauses);
|
||||
|
||||
/* Get the join qual clauses (in plain expression form) */
|
||||
/* Any pseudoconstant clauses are ignored here */
|
||||
if (IS_OUTER_JOIN(best_path->jointype))
|
||||
@ -1485,10 +1490,6 @@ create_nestloop_plan(PlannerInfo *root,
|
||||
otherclauses = NIL;
|
||||
}
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
joinclauses = order_qual_clauses(root, joinclauses);
|
||||
otherclauses = order_qual_clauses(root, otherclauses);
|
||||
|
||||
join_plan = make_nestloop(tlist,
|
||||
joinclauses,
|
||||
otherclauses,
|
||||
@ -1527,18 +1528,21 @@ create_mergejoin_plan(PlannerInfo *root,
|
||||
ListCell *lop;
|
||||
ListCell *lip;
|
||||
|
||||
/* Sort join qual clauses into best execution order */
|
||||
/* NB: do NOT reorder the mergeclauses */
|
||||
joinclauses = order_qual_clauses(root, best_path->jpath.joinrestrictinfo);
|
||||
|
||||
/* Get the join qual clauses (in plain expression form) */
|
||||
/* Any pseudoconstant clauses are ignored here */
|
||||
if (IS_OUTER_JOIN(best_path->jpath.jointype))
|
||||
{
|
||||
extract_actual_join_clauses(best_path->jpath.joinrestrictinfo,
|
||||
extract_actual_join_clauses(joinclauses,
|
||||
&joinclauses, &otherclauses);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* We can treat all clauses alike for an inner join */
|
||||
joinclauses = extract_actual_clauses(best_path->jpath.joinrestrictinfo,
|
||||
false);
|
||||
joinclauses = extract_actual_clauses(joinclauses, false);
|
||||
otherclauses = NIL;
|
||||
}
|
||||
|
||||
@ -1557,11 +1561,6 @@ create_mergejoin_plan(PlannerInfo *root,
|
||||
mergeclauses = get_switched_clauses(best_path->path_mergeclauses,
|
||||
best_path->jpath.outerjoinpath->parent->relids);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
/* NB: do NOT reorder the mergeclauses */
|
||||
joinclauses = order_qual_clauses(root, joinclauses);
|
||||
otherclauses = order_qual_clauses(root, otherclauses);
|
||||
|
||||
/*
|
||||
* Create explicit sort nodes for the outer and inner join paths if
|
||||
* necessary. The sort cost was already accounted for in the path. Make
|
||||
@ -1699,18 +1698,21 @@ create_hashjoin_plan(PlannerInfo *root,
|
||||
HashJoin *join_plan;
|
||||
Hash *hash_plan;
|
||||
|
||||
/* Sort join qual clauses into best execution order */
|
||||
joinclauses = order_qual_clauses(root, best_path->jpath.joinrestrictinfo);
|
||||
/* There's no point in sorting the hash clauses ... */
|
||||
|
||||
/* Get the join qual clauses (in plain expression form) */
|
||||
/* Any pseudoconstant clauses are ignored here */
|
||||
if (IS_OUTER_JOIN(best_path->jpath.jointype))
|
||||
{
|
||||
extract_actual_join_clauses(best_path->jpath.joinrestrictinfo,
|
||||
extract_actual_join_clauses(joinclauses,
|
||||
&joinclauses, &otherclauses);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* We can treat all clauses alike for an inner join */
|
||||
joinclauses = extract_actual_clauses(best_path->jpath.joinrestrictinfo,
|
||||
false);
|
||||
joinclauses = extract_actual_clauses(joinclauses, false);
|
||||
otherclauses = NIL;
|
||||
}
|
||||
|
||||
@ -1728,11 +1730,6 @@ create_hashjoin_plan(PlannerInfo *root,
|
||||
hashclauses = get_switched_clauses(best_path->path_hashclauses,
|
||||
best_path->jpath.outerjoinpath->parent->relids);
|
||||
|
||||
/* Sort clauses into best execution order */
|
||||
joinclauses = order_qual_clauses(root, joinclauses);
|
||||
otherclauses = order_qual_clauses(root, otherclauses);
|
||||
hashclauses = order_qual_clauses(root, hashclauses);
|
||||
|
||||
/* We don't want any excess columns in the hashed tuples */
|
||||
disuse_physical_tlist(inner_plan, best_path->jpath.innerjoinpath);
|
||||
|
||||
@ -2065,35 +2062,82 @@ get_switched_clauses(List *clauses, Relids outerrelids)
|
||||
* in at runtime.
|
||||
*
|
||||
* Ideally the order should be driven by a combination of execution cost and
|
||||
* selectivity, but unfortunately we have so little information about
|
||||
* execution cost of operators that it's really hard to do anything smart.
|
||||
* For now, we just move any quals that contain SubPlan references (but not
|
||||
* InitPlan references) to the end of the list.
|
||||
* selectivity, but it's not immediately clear how to account for both,
|
||||
* and given the uncertainty of the estimates the reliability of the decisions
|
||||
* would be doubtful anyway. So we just order by estimated per-tuple cost,
|
||||
* being careful not to change the order when (as is often the case) the
|
||||
* estimates are identical.
|
||||
*
|
||||
* Although this will work on either bare clauses or RestrictInfos, it's
|
||||
* much faster to apply it to RestrictInfos, since it can re-use cost
|
||||
* information that is cached in RestrictInfos.
|
||||
*
|
||||
* Note: some callers pass lists that contain entries that will later be
|
||||
* removed; this is the easiest way to let this routine see RestrictInfos
|
||||
* instead of bare clauses. It's OK because we only sort by cost, but
|
||||
* a cost/selectivity combination would likely do the wrong thing.
|
||||
*/
|
||||
static List *
|
||||
order_qual_clauses(PlannerInfo *root, List *clauses)
|
||||
{
|
||||
List *nosubplans;
|
||||
List *withsubplans;
|
||||
ListCell *l;
|
||||
typedef struct
|
||||
{
|
||||
Node *clause;
|
||||
Cost cost;
|
||||
} QualItem;
|
||||
int nitems = list_length(clauses);
|
||||
QualItem *items;
|
||||
ListCell *lc;
|
||||
int i;
|
||||
List *result;
|
||||
|
||||
/* No need to work hard if the query is subselect-free */
|
||||
if (!root->parse->hasSubLinks)
|
||||
/* No need to work hard for 0 or 1 clause */
|
||||
if (nitems <= 1)
|
||||
return clauses;
|
||||
|
||||
nosubplans = NIL;
|
||||
withsubplans = NIL;
|
||||
foreach(l, clauses)
|
||||
/*
|
||||
* Collect the items and costs into an array. This is to avoid repeated
|
||||
* cost_qual_eval work if the inputs aren't RestrictInfos.
|
||||
*/
|
||||
items = (QualItem *) palloc(nitems * sizeof(QualItem));
|
||||
i = 0;
|
||||
foreach(lc, clauses)
|
||||
{
|
||||
Node *clause = (Node *) lfirst(l);
|
||||
Node *clause = (Node *) lfirst(lc);
|
||||
QualCost qcost;
|
||||
|
||||
if (contain_subplans(clause))
|
||||
withsubplans = lappend(withsubplans, clause);
|
||||
else
|
||||
nosubplans = lappend(nosubplans, clause);
|
||||
cost_qual_eval_node(&qcost, clause);
|
||||
items[i].clause = clause;
|
||||
items[i].cost = qcost.per_tuple;
|
||||
i++;
|
||||
}
|
||||
|
||||
return list_concat(nosubplans, withsubplans);
|
||||
/*
|
||||
* Sort. We don't use qsort() because it's not guaranteed stable for
|
||||
* equal keys. The expected number of entries is small enough that
|
||||
* a simple insertion sort should be good enough.
|
||||
*/
|
||||
for (i = 1; i < nitems; i++)
|
||||
{
|
||||
QualItem newitem = items[i];
|
||||
int j;
|
||||
|
||||
/* insert newitem into the already-sorted subarray */
|
||||
for (j = i; j > 0; j--)
|
||||
{
|
||||
if (newitem.cost >= items[j-1].cost)
|
||||
break;
|
||||
items[j] = items[j-1];
|
||||
}
|
||||
items[j] = newitem;
|
||||
}
|
||||
|
||||
/* Convert back to a list */
|
||||
result = NIL;
|
||||
for (i = 0; i < nitems; i++)
|
||||
result = lappend(result, items[i].clause);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -9,7 +9,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.127 2007/01/05 22:19:32 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.128 2007/01/22 01:35:20 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -83,7 +83,6 @@ static Node *replace_vars_with_subplan_refs(Node *node,
|
||||
static Node *replace_vars_with_subplan_refs_mutator(Node *node,
|
||||
replace_vars_with_subplan_refs_context *context);
|
||||
static bool fix_opfuncids_walker(Node *node, void *context);
|
||||
static void set_sa_opfuncid(ScalarArrayOpExpr *opexpr);
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
@ -1433,7 +1432,7 @@ set_opfuncid(OpExpr *opexpr)
|
||||
* set_sa_opfuncid
|
||||
* As above, for ScalarArrayOpExpr nodes.
|
||||
*/
|
||||
static void
|
||||
void
|
||||
set_sa_opfuncid(ScalarArrayOpExpr *opexpr)
|
||||
{
|
||||
if (opexpr->opfuncid == InvalidOid)
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.230 2007/01/17 17:25:52 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.231 2007/01/22 01:35:20 tgl Exp $
|
||||
*
|
||||
* HISTORY
|
||||
* AUTHOR DATE MAJOR EVENT
|
||||
@ -64,6 +64,7 @@ typedef struct
|
||||
static bool contain_agg_clause_walker(Node *node, void *context);
|
||||
static bool count_agg_clauses_walker(Node *node, AggClauseCounts *counts);
|
||||
static bool expression_returns_set_walker(Node *node, void *context);
|
||||
static bool expression_returns_set_rows_walker(Node *node, double *count);
|
||||
static bool contain_subplans_walker(Node *node, void *context);
|
||||
static bool contain_mutable_functions_walker(Node *node, void *context);
|
||||
static bool contain_volatile_functions_walker(Node *node, void *context);
|
||||
@ -566,6 +567,78 @@ expression_returns_set_walker(Node *node, void *context)
|
||||
context);
|
||||
}
|
||||
|
||||
/*
|
||||
* expression_returns_set_rows
|
||||
* Estimate the number of rows in a set result.
|
||||
*
|
||||
* We use the product of the rowcount estimates of all the functions in
|
||||
* the given tree. The result is 1 if there are no set-returning functions.
|
||||
*/
|
||||
double
|
||||
expression_returns_set_rows(Node *clause)
|
||||
{
|
||||
double result = 1;
|
||||
|
||||
(void) expression_returns_set_rows_walker(clause, &result);
|
||||
return result;
|
||||
}
|
||||
|
||||
static bool
|
||||
expression_returns_set_rows_walker(Node *node, double *count)
|
||||
{
|
||||
if (node == NULL)
|
||||
return false;
|
||||
if (IsA(node, FuncExpr))
|
||||
{
|
||||
FuncExpr *expr = (FuncExpr *) node;
|
||||
|
||||
if (expr->funcretset)
|
||||
*count *= get_func_rows(expr->funcid);
|
||||
}
|
||||
if (IsA(node, OpExpr))
|
||||
{
|
||||
OpExpr *expr = (OpExpr *) node;
|
||||
|
||||
if (expr->opretset)
|
||||
{
|
||||
set_opfuncid(expr);
|
||||
*count *= get_func_rows(expr->opfuncid);
|
||||
}
|
||||
}
|
||||
|
||||
/* Avoid recursion for some cases that can't return a set */
|
||||
if (IsA(node, Aggref))
|
||||
return false;
|
||||
if (IsA(node, DistinctExpr))
|
||||
return false;
|
||||
if (IsA(node, ScalarArrayOpExpr))
|
||||
return false;
|
||||
if (IsA(node, BoolExpr))
|
||||
return false;
|
||||
if (IsA(node, SubLink))
|
||||
return false;
|
||||
if (IsA(node, SubPlan))
|
||||
return false;
|
||||
if (IsA(node, ArrayExpr))
|
||||
return false;
|
||||
if (IsA(node, RowExpr))
|
||||
return false;
|
||||
if (IsA(node, RowCompareExpr))
|
||||
return false;
|
||||
if (IsA(node, CoalesceExpr))
|
||||
return false;
|
||||
if (IsA(node, MinMaxExpr))
|
||||
return false;
|
||||
if (IsA(node, XmlExpr))
|
||||
return false;
|
||||
if (IsA(node, NullIfExpr))
|
||||
return false;
|
||||
|
||||
return expression_tree_walker(node, expression_returns_set_rows_walker,
|
||||
(void *) count);
|
||||
}
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* Subplan clause manipulation
|
||||
*****************************************************************************/
|
||||
|
||||
@ -11,7 +11,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.574 2007/01/14 13:11:53 petere Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.575 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
* HISTORY
|
||||
* AUTHOR DATE MAJOR EVENT
|
||||
@ -370,7 +370,7 @@ static Node *makeXmlExpr(XmlExprOp op, char *name, List *named_args, List *args)
|
||||
CHARACTER CHARACTERISTICS CHECK CHECKPOINT CLASS CLOSE
|
||||
CLUSTER COALESCE COLLATE COLUMN COMMENT COMMIT
|
||||
COMMITTED CONCURRENTLY CONNECTION CONSTRAINT CONSTRAINTS
|
||||
CONTENT_P CONVERSION_P CONVERT COPY CREATE CREATEDB
|
||||
CONTENT_P CONVERSION_P CONVERT COPY COST CREATE CREATEDB
|
||||
CREATEROLE CREATEUSER CROSS CSV CURRENT_DATE CURRENT_ROLE CURRENT_TIME
|
||||
CURRENT_TIMESTAMP CURRENT_USER CURSOR CYCLE
|
||||
|
||||
@ -3958,6 +3958,14 @@ common_func_opt_item:
|
||||
{
|
||||
$$ = makeDefElem("security", (Node *)makeInteger(FALSE));
|
||||
}
|
||||
| COST NumericOnly
|
||||
{
|
||||
$$ = makeDefElem("cost", (Node *)$2);
|
||||
}
|
||||
| ROWS NumericOnly
|
||||
{
|
||||
$$ = makeDefElem("rows", (Node *)$2);
|
||||
}
|
||||
;
|
||||
|
||||
createfunc_opt_item:
|
||||
@ -8564,6 +8572,7 @@ unreserved_keyword:
|
||||
| CONTENT_P
|
||||
| CONVERSION_P
|
||||
| COPY
|
||||
| COST
|
||||
| CREATEDB
|
||||
| CREATEROLE
|
||||
| CREATEUSER
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.181 2007/01/09 02:14:14 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.182 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -93,6 +93,7 @@ static const ScanKeyword ScanKeywords[] = {
|
||||
{"conversion", CONVERSION_P},
|
||||
{"convert", CONVERT},
|
||||
{"copy", COPY},
|
||||
{"cost", COST},
|
||||
{"create", CREATE},
|
||||
{"createdb", CREATEDB},
|
||||
{"createrole", CREATEROLE},
|
||||
|
||||
@ -9,7 +9,7 @@
|
||||
#
|
||||
#
|
||||
# IDENTIFICATION
|
||||
# $PostgreSQL: pgsql/src/backend/utils/Gen_fmgrtab.sh,v 1.34 2007/01/05 22:19:39 momjian Exp $
|
||||
# $PostgreSQL: pgsql/src/backend/utils/Gen_fmgrtab.sh,v 1.35 2007/01/22 01:35:21 tgl Exp $
|
||||
#
|
||||
#-------------------------------------------------------------------------
|
||||
|
||||
@ -72,6 +72,8 @@ trap 'echo "Caught signal." ; cleanup ; exit 1' 1 2 15
|
||||
#
|
||||
# Generate the file containing raw pg_proc tuple data
|
||||
# (but only for "internal" language procedures...).
|
||||
# Basically we strip off the DATA macro call, leaving procedure OID as $1
|
||||
# and all the pg_proc field values as $2, $3, etc on each line.
|
||||
#
|
||||
# Note assumption here that prolang == $5 and INTERNALlanguageId == 12.
|
||||
#
|
||||
@ -202,15 +204,15 @@ FuNkYfMgRtAbStUfF
|
||||
# may seem tedious, but avoid the temptation to write a quick x?y:z
|
||||
# conditional expression instead. Not all awks have conditional expressions.
|
||||
#
|
||||
# Note assumptions here that prosrc == $(NF-2), pronargs == $11,
|
||||
# proisstrict == $8, proretset == $9
|
||||
# Note assumptions here that prosrc == $(NF-2), pronargs == $13,
|
||||
# proisstrict == $10, proretset == $11
|
||||
|
||||
$AWK 'BEGIN {
|
||||
Bool["t"] = "true"
|
||||
Bool["f"] = "false"
|
||||
}
|
||||
{ printf (" { %d, \"%s\", %d, %s, %s, %s },\n"), \
|
||||
$1, $(NF-2), $11, Bool[$8], Bool[$9], $(NF-2)
|
||||
$1, $(NF-2), $13, Bool[$10], Bool[$11], $(NF-2)
|
||||
}' $SORTEDFILE >> "$$-$TABLEFILE"
|
||||
|
||||
if [ $? -ne 0 ]; then
|
||||
|
||||
44
src/backend/utils/cache/lsyscache.c
vendored
44
src/backend/utils/cache/lsyscache.c
vendored
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.145 2007/01/21 00:57:15 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/utils/cache/lsyscache.c,v 1.146 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* Eventually, the index information should go through here, too.
|
||||
@ -1295,6 +1295,48 @@ func_volatile(Oid funcid)
|
||||
return result;
|
||||
}
|
||||
|
||||
/*
|
||||
* get_func_cost
|
||||
* Given procedure id, return the function's procost field.
|
||||
*/
|
||||
float4
|
||||
get_func_cost(Oid funcid)
|
||||
{
|
||||
HeapTuple tp;
|
||||
float4 result;
|
||||
|
||||
tp = SearchSysCache(PROCOID,
|
||||
ObjectIdGetDatum(funcid),
|
||||
0, 0, 0);
|
||||
if (!HeapTupleIsValid(tp))
|
||||
elog(ERROR, "cache lookup failed for function %u", funcid);
|
||||
|
||||
result = ((Form_pg_proc) GETSTRUCT(tp))->procost;
|
||||
ReleaseSysCache(tp);
|
||||
return result;
|
||||
}
|
||||
|
||||
/*
|
||||
* get_func_rows
|
||||
* Given procedure id, return the function's prorows field.
|
||||
*/
|
||||
float4
|
||||
get_func_rows(Oid funcid)
|
||||
{
|
||||
HeapTuple tp;
|
||||
float4 result;
|
||||
|
||||
tp = SearchSysCache(PROCOID,
|
||||
ObjectIdGetDatum(funcid),
|
||||
0, 0, 0);
|
||||
if (!HeapTupleIsValid(tp))
|
||||
elog(ERROR, "cache lookup failed for function %u", funcid);
|
||||
|
||||
result = ((Form_pg_proc) GETSTRUCT(tp))->prorows;
|
||||
ReleaseSysCache(tp);
|
||||
return result;
|
||||
}
|
||||
|
||||
/* ---------- RELATION CACHE ---------- */
|
||||
|
||||
/*
|
||||
|
||||
@ -12,7 +12,7 @@
|
||||
* by PostgreSQL
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.456 2007/01/05 22:19:48 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.457 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -5837,6 +5837,8 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
char *provolatile;
|
||||
char *proisstrict;
|
||||
char *prosecdef;
|
||||
char *procost;
|
||||
char *prorows;
|
||||
char *lanname;
|
||||
char *rettypename;
|
||||
int nallargs;
|
||||
@ -5857,12 +5859,25 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
selectSourceSchema(finfo->dobj.namespace->dobj.name);
|
||||
|
||||
/* Fetch function-specific details */
|
||||
if (g_fout->remoteVersion >= 80100)
|
||||
if (g_fout->remoteVersion >= 80300)
|
||||
{
|
||||
appendPQExpBuffer(query,
|
||||
"SELECT proretset, prosrc, probin, "
|
||||
"proallargtypes, proargmodes, proargnames, "
|
||||
"provolatile, proisstrict, prosecdef, "
|
||||
"procost, prorows, "
|
||||
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_catalog.pg_proc "
|
||||
"WHERE oid = '%u'::pg_catalog.oid",
|
||||
finfo->dobj.catId.oid);
|
||||
}
|
||||
else if (g_fout->remoteVersion >= 80100)
|
||||
{
|
||||
appendPQExpBuffer(query,
|
||||
"SELECT proretset, prosrc, probin, "
|
||||
"proallargtypes, proargmodes, proargnames, "
|
||||
"provolatile, proisstrict, prosecdef, "
|
||||
"0 as procost, 0 as prorows, "
|
||||
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_catalog.pg_proc "
|
||||
"WHERE oid = '%u'::pg_catalog.oid",
|
||||
@ -5876,6 +5891,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
"null as proargmodes, "
|
||||
"proargnames, "
|
||||
"provolatile, proisstrict, prosecdef, "
|
||||
"0 as procost, 0 as prorows, "
|
||||
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_catalog.pg_proc "
|
||||
"WHERE oid = '%u'::pg_catalog.oid",
|
||||
@ -5889,6 +5905,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
"null as proargmodes, "
|
||||
"null as proargnames, "
|
||||
"provolatile, proisstrict, prosecdef, "
|
||||
"0 as procost, 0 as prorows, "
|
||||
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_catalog.pg_proc "
|
||||
"WHERE oid = '%u'::pg_catalog.oid",
|
||||
@ -5904,6 +5921,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
"case when proiscachable then 'i' else 'v' end as provolatile, "
|
||||
"proisstrict, "
|
||||
"'f'::boolean as prosecdef, "
|
||||
"0 as procost, 0 as prorows, "
|
||||
"(SELECT lanname FROM pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_proc "
|
||||
"WHERE oid = '%u'::oid",
|
||||
@ -5919,6 +5937,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
"case when proiscachable then 'i' else 'v' end as provolatile, "
|
||||
"'f'::boolean as proisstrict, "
|
||||
"'f'::boolean as prosecdef, "
|
||||
"0 as procost, 0 as prorows, "
|
||||
"(SELECT lanname FROM pg_language WHERE oid = prolang) as lanname "
|
||||
"FROM pg_proc "
|
||||
"WHERE oid = '%u'::oid",
|
||||
@ -5946,6 +5965,8 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
provolatile = PQgetvalue(res, 0, PQfnumber(res, "provolatile"));
|
||||
proisstrict = PQgetvalue(res, 0, PQfnumber(res, "proisstrict"));
|
||||
prosecdef = PQgetvalue(res, 0, PQfnumber(res, "prosecdef"));
|
||||
procost = PQgetvalue(res, 0, PQfnumber(res, "procost"));
|
||||
prorows = PQgetvalue(res, 0, PQfnumber(res, "prorows"));
|
||||
lanname = PQgetvalue(res, 0, PQfnumber(res, "lanname"));
|
||||
|
||||
/*
|
||||
@ -6072,6 +6093,30 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
|
||||
if (prosecdef[0] == 't')
|
||||
appendPQExpBuffer(q, " SECURITY DEFINER");
|
||||
|
||||
/*
|
||||
* COST and ROWS are emitted only if present and not default, so as not to
|
||||
* break backwards-compatibility of the dump without need. Keep this code
|
||||
* in sync with the defaults in functioncmds.c.
|
||||
*/
|
||||
if (strcmp(procost, "0") != 0)
|
||||
{
|
||||
if (strcmp(lanname, "internal") == 0 || strcmp(lanname, "c") == 0)
|
||||
{
|
||||
/* default cost is 1 */
|
||||
if (strcmp(procost, "1") != 0)
|
||||
appendPQExpBuffer(q, " COST %s", procost);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* default cost is 100 */
|
||||
if (strcmp(procost, "100") != 0)
|
||||
appendPQExpBuffer(q, " COST %s", procost);
|
||||
}
|
||||
}
|
||||
if (proretset[0] == 't' &&
|
||||
strcmp(prorows, "0") != 0 && strcmp(prorows, "1000") != 0)
|
||||
appendPQExpBuffer(q, " ROWS %s", prorows);
|
||||
|
||||
appendPQExpBuffer(q, ";\n");
|
||||
|
||||
ArchiveEntry(fout, finfo->dobj.catId, finfo->dobj.dumpId,
|
||||
|
||||
@ -37,7 +37,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.375 2007/01/20 23:13:01 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.376 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -53,6 +53,6 @@
|
||||
*/
|
||||
|
||||
/* yyyymmddN */
|
||||
#define CATALOG_VERSION_NO 200701203
|
||||
#define CATALOG_VERSION_NO 200701211
|
||||
|
||||
#endif
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_attribute.h,v 1.129 2007/01/09 02:14:15 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_attribute.h,v 1.130 2007/01/22 01:35:21 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* the genbki.sh script reads this file and generates .bki
|
||||
@ -290,39 +290,43 @@ DATA(insert ( 1247 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
|
||||
{ 1255, {"pronamespace"}, 26, -1, 4, 2, 0, -1, -1, true, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proowner"}, 26, -1, 4, 3, 0, -1, -1, true, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prolang"}, 26, -1, 4, 4, 0, -1, -1, true, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proisagg"}, 16, -1, 1, 5, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prosecdef"}, 16, -1, 1, 6, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proisstrict"}, 16, -1, 1, 7, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proretset"}, 16, -1, 1, 8, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"provolatile"}, 18, -1, 1, 9, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"pronargs"}, 21, -1, 2, 10, 0, -1, -1, true, 'p', 's', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prorettype"}, 26, -1, 4, 11, 0, -1, -1, true, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proargtypes"}, 30, -1, -1, 12, 1, -1, -1, false, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proallargtypes"}, 1028, -1, -1, 13, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proargmodes"}, 1002, -1, -1, 14, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proargnames"}, 1009, -1, -1, 15, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"prosrc"}, 25, -1, -1, 16, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"probin"}, 17, -1, -1, 17, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proacl"}, 1034, -1, -1, 18, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }
|
||||
{ 1255, {"procost"}, 700, -1, 4, 5, 0, -1, -1, false, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prorows"}, 700, -1, 4, 6, 0, -1, -1, false, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proisagg"}, 16, -1, 1, 7, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prosecdef"}, 16, -1, 1, 8, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proisstrict"}, 16, -1, 1, 9, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proretset"}, 16, -1, 1, 10, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"provolatile"}, 18, -1, 1, 11, 0, -1, -1, true, 'p', 'c', true, false, false, true, 0 }, \
|
||||
{ 1255, {"pronargs"}, 21, -1, 2, 12, 0, -1, -1, true, 'p', 's', true, false, false, true, 0 }, \
|
||||
{ 1255, {"prorettype"}, 26, -1, 4, 13, 0, -1, -1, true, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proargtypes"}, 30, -1, -1, 14, 1, -1, -1, false, 'p', 'i', true, false, false, true, 0 }, \
|
||||
{ 1255, {"proallargtypes"}, 1028, -1, -1, 15, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proargmodes"}, 1002, -1, -1, 16, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proargnames"}, 1009, -1, -1, 17, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"prosrc"}, 25, -1, -1, 18, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"probin"}, 17, -1, -1, 19, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
|
||||
{ 1255, {"proacl"}, 1034, -1, -1, 20, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }
|
||||
|
||||
DATA(insert ( 1255 proname 19 -1 NAMEDATALEN 1 0 -1 -1 f p i t f f t 0));
|
||||
DATA(insert ( 1255 pronamespace 26 -1 4 2 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 proowner 26 -1 4 3 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 prolang 26 -1 4 4 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 proisagg 16 -1 1 5 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 prosecdef 16 -1 1 6 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 proisstrict 16 -1 1 7 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 proretset 16 -1 1 8 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 provolatile 18 -1 1 9 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 pronargs 21 -1 2 10 0 -1 -1 t p s t f f t 0));
|
||||
DATA(insert ( 1255 prorettype 26 -1 4 11 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 proargtypes 30 -1 -1 12 1 -1 -1 f p i t f f t 0));
|
||||
DATA(insert ( 1255 proallargtypes 1028 -1 -1 13 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proargmodes 1002 -1 -1 14 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proargnames 1009 -1 -1 15 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 prosrc 25 -1 -1 16 0 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 probin 17 -1 -1 17 0 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proacl 1034 -1 -1 18 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 procost 700 -1 4 5 0 -1 -1 f p i t f f t 0));
|
||||
DATA(insert ( 1255 prorows 700 -1 4 6 0 -1 -1 f p i t f f t 0));
|
||||
DATA(insert ( 1255 proisagg 16 -1 1 7 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 prosecdef 16 -1 1 8 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 proisstrict 16 -1 1 9 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 proretset 16 -1 1 10 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 provolatile 18 -1 1 11 0 -1 -1 t p c t f f t 0));
|
||||
DATA(insert ( 1255 pronargs 21 -1 2 12 0 -1 -1 t p s t f f t 0));
|
||||
DATA(insert ( 1255 prorettype 26 -1 4 13 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 proargtypes 30 -1 -1 14 1 -1 -1 f p i t f f t 0));
|
||||
DATA(insert ( 1255 proallargtypes 1028 -1 -1 15 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proargmodes 1002 -1 -1 16 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proargnames 1009 -1 -1 17 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 prosrc 25 -1 -1 18 0 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 probin 17 -1 -1 19 0 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 proacl 1034 -1 -1 20 1 -1 -1 f x i f f f t 0));
|
||||
DATA(insert ( 1255 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
|
||||
DATA(insert ( 1255 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
|
||||
DATA(insert ( 1255 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_class.h,v 1.99 2007/01/05 22:19:52 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/include/catalog/pg_class.h,v 1.100 2007/01/22 01:35:22 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* the genbki.sh script reads this file and generates .bki
|
||||
@ -136,7 +136,7 @@ DATA(insert OID = 1247 ( pg_type PGNSP 71 PGUID 0 1247 0 0 0 0 0 f f r 25 0 0
|
||||
DESCR("");
|
||||
DATA(insert OID = 1249 ( pg_attribute PGNSP 75 PGUID 0 1249 0 0 0 0 0 f f r 17 0 0 0 0 0 f f f f 3 _null_ _null_ ));
|
||||
DESCR("");
|
||||
DATA(insert OID = 1255 ( pg_proc PGNSP 81 PGUID 0 1255 0 0 0 0 0 f f r 18 0 0 0 0 0 t f f f 3 _null_ _null_ ));
|
||||
DATA(insert OID = 1255 ( pg_proc PGNSP 81 PGUID 0 1255 0 0 0 0 0 f f r 20 0 0 0 0 0 t f f f 3 _null_ _null_ ));
|
||||
DESCR("");
|
||||
DATA(insert OID = 1259 ( pg_class PGNSP 83 PGUID 0 1259 0 0 0 0 0 f f r 27 0 0 0 0 0 t f f f 3 _null_ _null_ ));
|
||||
DESCR("");
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.85 2007/01/05 22:19:56 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.86 2007/01/22 01:35:22 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -51,6 +51,7 @@ extern bool contain_agg_clause(Node *clause);
|
||||
extern void count_agg_clauses(Node *clause, AggClauseCounts *counts);
|
||||
|
||||
extern bool expression_returns_set(Node *clause);
|
||||
extern double expression_returns_set_rows(Node *clause);
|
||||
|
||||
extern bool contain_subplans(Node *clause);
|
||||
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.83 2007/01/05 22:19:56 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.84 2007/01/22 01:35:22 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -89,6 +89,7 @@ extern void cost_nestloop(NestPath *path, PlannerInfo *root);
|
||||
extern void cost_mergejoin(MergePath *path, PlannerInfo *root);
|
||||
extern void cost_hashjoin(HashPath *path, PlannerInfo *root);
|
||||
extern void cost_qual_eval(QualCost *cost, List *quals);
|
||||
extern void cost_qual_eval_node(QualCost *cost, Node *qual);
|
||||
extern void set_baserel_size_estimates(PlannerInfo *root, RelOptInfo *rel);
|
||||
extern void set_joinrel_size_estimates(PlannerInfo *root, RelOptInfo *rel,
|
||||
RelOptInfo *outer_rel,
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.98 2007/01/20 20:45:40 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.99 2007/01/22 01:35:22 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -97,5 +97,6 @@ extern List *set_returning_clause_references(List *rlist,
|
||||
Index resultRelation);
|
||||
extern void fix_opfuncids(Node *node);
|
||||
extern void set_opfuncid(OpExpr *opexpr);
|
||||
extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr);
|
||||
|
||||
#endif /* PLANMAIN_H */
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.114 2007/01/21 00:57:15 tgl Exp $
|
||||
* $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.115 2007/01/22 01:35:22 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -76,6 +76,8 @@ extern Oid get_func_signature(Oid funcid, Oid **argtypes, int *nargs);
|
||||
extern bool get_func_retset(Oid funcid);
|
||||
extern bool func_strict(Oid funcid);
|
||||
extern char func_volatile(Oid funcid);
|
||||
extern float4 get_func_cost(Oid funcid);
|
||||
extern float4 get_func_rows(Oid funcid);
|
||||
extern Oid get_relname_relid(const char *relname, Oid relnamespace);
|
||||
extern char *get_rel_name(Oid relid);
|
||||
extern Oid get_rel_namespace(Oid relid);
|
||||
|
||||
@ -46,7 +46,9 @@ WHERE p1.prolang = 0 OR p1.prorettype = 0 OR
|
||||
p1.pronargs < 0 OR
|
||||
array_lower(p1.proargtypes, 1) != 0 OR
|
||||
array_upper(p1.proargtypes, 1) != p1.pronargs-1 OR
|
||||
0::oid = ANY (p1.proargtypes);
|
||||
0::oid = ANY (p1.proargtypes) OR
|
||||
procost <= 0 OR
|
||||
CASE WHEN proretset THEN prorows <= 0 ELSE prorows != 0 END;
|
||||
oid | proname
|
||||
-----+---------
|
||||
(0 rows)
|
||||
|
||||
@ -53,7 +53,9 @@ WHERE p1.prolang = 0 OR p1.prorettype = 0 OR
|
||||
p1.pronargs < 0 OR
|
||||
array_lower(p1.proargtypes, 1) != 0 OR
|
||||
array_upper(p1.proargtypes, 1) != p1.pronargs-1 OR
|
||||
0::oid = ANY (p1.proargtypes);
|
||||
0::oid = ANY (p1.proargtypes) OR
|
||||
procost <= 0 OR
|
||||
CASE WHEN proretset THEN prorows <= 0 ELSE prorows != 0 END;
|
||||
|
||||
-- Look for conflicting proc definitions (same names and input datatypes).
|
||||
-- (This test should be dead code now that we have the unique index
|
||||
|
||||
Loading…
Reference in New Issue
Block a user