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Remove duplicate entry for R_PLAN (thanks Bruce).

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Add entry for undocumented (?) KSQO.
This commit is contained in:
Thomas G. Lockhart 1998-10-14 16:31:28 +00:00
parent 963ed0e72a
commit 6129de0b76
1 changed files with 25 additions and 21 deletions
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46
doc/src/sgml/ref/set.sgml
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@ -20,7 +20,6 @@ SET
<REPLACEABLE CLASS="PARAMETER">
</REPLACEABLE>
SET <REPLACEABLE CLASS="PARAMETER">variable</REPLACEABLE> { TO | = } { '<REPLACEABLE CLASS="PARAMETER">value</REPLACEABLE>' | DEFAULT }
SET TIME ZONE { '<REPLACEABLE CLASS="PARAMETER">timezone</REPLACEABLE>' | LOCAL };
</SYNOPSIS>
@ -52,7 +51,7 @@ New value of parameter.
</variablelist>
<para>
The possible variables and allowed values are:
The possible variables and allowed values are:
<VARIABLELIST>
<VARLISTENTRY>
@ -197,16 +196,18 @@ set time zone to your local timezone
</variablelist>
<para>
If an invalid time zone is specified, the time zone
becomes GMT (on most systems anyway).
If an invalid time zone is specified, the time zone
becomes GMT (on most systems anyway).
<para>
A frontend which uses libpq may be initialized by setting the PGTZ
environment variable.
A frontend which uses libpq may be initialized by setting the PGTZ
environment variable.
<para>
The second syntax shown above, allows one to set the timezone
with a syntax similar to SQL92 <command>SET TIME ZONE</command>.
The LOCAL keyword is just an alternate form
of DEFAULT for SQL92 compatibility.
The second syntax shown above, allows one to set the timezone
with a syntax similar to SQL92 <command>SET TIME ZONE</command>.
The LOCAL keyword is just an alternate form
of DEFAULT for SQL92 compatibility.
</varlistentry>
</variablelist>
@ -315,7 +316,7 @@ DEFAULT
</term>
<listitem>
<para>
Equivalent to specifying <command>SET GEQO=On</command>
Equivalent to specifying <command>SET GEQO='on'</command>
</varlistentry>
</variablelist>
@ -361,7 +362,7 @@ DEFAULT
</term>
<listitem>
<para>
Equivalent to specifying <command>SET R_PLANS=Off</command>.
Equivalent to specifying <command>SET R_PLANS='off'</command>.
</variablelist>
<para>
@ -375,11 +376,13 @@ Equivalent to specifying <command>SET R_PLANS=Off</command>.
<varlistentry>
<term>
R_PLANS
KSQO
</term>
<listitem>
<para>
Determines whether right-hand plan evaluation is allowed:
<firstterm>Key Set Query Optimizer</firstterm> forces the query optimizer
to optimize repetative OR clauses such as generated by
<productname>MicroSoft Access</productname>:
<variablelist>
<varlistentry>
@ -388,7 +391,7 @@ On
</term>
<listitem>
<para>
enables right-hand evaluation of plans.
enables this optimization.
<varlistentry>
<term>
@ -396,7 +399,7 @@ Off
</term>
<listitem>
<para>
disables right-hand evaluation of plans.
disables this optimization.
<varlistentry>
<term>
@ -404,7 +407,7 @@ DEFAULT
</term>
<listitem>
<para>
Equivalent to specifying <command>SET R_PLANS=Off</command>.
Equivalent to specifying <command>SET KSQO='off'</command>.
</variablelist>
<para>
@ -430,7 +433,8 @@ Value
</term>
<listitem>
<para>
Maximum number of rows to return for a query. The default is unlimited.
Maximum number of rows to return for a query. The default is to allow
an unlimited number of rows.
<varlistentry>
<term>
<replaceable class="parameter">#</replaceable>
@ -445,12 +449,12 @@ DEFAULT
</term>
<listitem>
<para>
Sets the number of rows returned by a query to unlimited.
Sets the maximum number of rows returned by a query to be unlimited.
</varlistentry>
<para>
By default, there is no limit to the number of rows
returned by a query.
By default, there is no limit to the number of rows
returned by a query.
</variablelist>
</VARLISTENTRY>