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Add documentation for information schema, and some corrections on some

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views.
This commit is contained in:
Peter Eisentraut 2003-05-18 20:55:57 +00:00
parent 6d7ff848e5
commit f89c972ac8
4 changed files with 1776 additions and 17 deletions
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3
doc/src/sgml/filelist.sgml
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@ -1,4 +1,4 @@
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/filelist.sgml,v 1.28 2003/04/10 01:22:44 petere Exp $ -->
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/filelist.sgml,v 1.29 2003/05/18 20:55:56 petere Exp $ -->
<!entity history SYSTEM "history.sgml">
<!entity info SYSTEM "info.sgml">
@ -63,6 +63,7 @@
<!entity func-ref SYSTEM "func-ref.sgml">
<!entity gist SYSTEM "gist.sgml">
<!entity indexcost SYSTEM "indexcost.sgml">
<!entity infoschema SYSTEM "information_schema.sgml">
<!entity jdbc SYSTEM "jdbc.sgml">
<!entity libpgeasy SYSTEM "libpgeasy.sgml">
<!entity libpq SYSTEM "libpq.sgml">

1735
doc/src/sgml/information_schema.sgml Normal file
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3
doc/src/sgml/postgres.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/postgres.sgml,v 1.51 2003/04/13 09:57:35 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/postgres.sgml,v 1.52 2003/05/18 20:55:56 petere Exp $
-->
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V3.1//EN" [
@ -189,6 +189,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/postgres.sgml,v 1.51 2003/04/13 09:57:35 pe
&ecpg;
&jdbc;
&pygresql;
&infoschema;
</part>

52
src/backend/catalog/information_schema.sql
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@ -4,7 +4,7 @@
*
* Copyright 2002, PostgreSQL Global Development Group
*
* $Id: information_schema.sql,v 1.4 2003/03/20 05:06:55 momjian Exp $
* $Id: information_schema.sql,v 1.5 2003/05/18 20:55:57 petere Exp $
*/
@ -169,17 +169,28 @@ CREATE VIEW columns AS
AS character_octet_length,
CAST(
CASE WHEN a.atttypid IN (1700) THEN ((a.atttypmod - 4) >> 16) & 65535 ELSE null END
CASE a.atttypid
WHEN 21 /*int2*/ THEN 16
WHEN 23 /*int4*/ THEN 32
WHEN 20 /*int8*/ THEN 64
WHEN 1700 /*numeric*/ THEN ((a.atttypmod - 4) >> 16) & 65535
WHEN 700 /*float4*/ THEN 24 /*FLT_MANT_DIG*/
WHEN 701 /*float8*/ THEN 53 /*DBL_MANT_DIG*/
ELSE null END
AS cardinal_number)
AS numeric_precision,
CAST(
CASE WHEN a.atttypid IN (1700) THEN 10 ELSE null END
CASE WHEN a.atttypid IN (21, 23, 20, 700, 701) THEN 2
WHEN a.atttypid IN (1700) THEN 10
ELSE null END
AS cardinal_number)
AS numeric_precision_radix,
CAST(
CASE WHEN a.atttypid IN (1700) THEN (a.atttypmod - 4) & 65535 ELSE null END
CASE WHEN a.atttypid IN (21, 23, 20) THEN 0
WHEN a.atttypid IN (1700) THEN (a.atttypmod - 4) & 65535
ELSE null END
AS cardinal_number)
AS numeric_scale,
@ -203,18 +214,18 @@ CREATE VIEW columns AS
CAST(null AS sql_identifier) AS collation_schema,
CAST(null AS sql_identifier) AS collation_name,
CAST(CASE WHEN t.typbasetype <> 0 THEN current_database() ELSE null END
CAST(CASE WHEN t.typtype = 'd' THEN current_database() ELSE null END
AS sql_identifier) AS domain_catalog,
CAST(CASE WHEN t.typbasetype <> 0 THEN nt.nspname ELSE null END
CAST(CASE WHEN t.typtype = 'd' THEN nt.nspname ELSE null END
AS sql_identifier) AS domain_schema,
CAST(CASE WHEN t.typbasetype <> 0 THEN t.typname ELSE null END
CAST(CASE WHEN t.typtype = 'd' THEN t.typname ELSE null END
AS sql_identifier) AS domain_name,
CAST(CASE WHEN t.typbasetype = 0 THEN current_database() ELSE null END
CAST(CASE WHEN t.typtype <> 'd' THEN current_database() ELSE null END
AS sql_identifier) AS udt_catalog,
CAST(CASE WHEN t.typbasetype = 0 THEN nt.nspname ELSE null END
CAST(CASE WHEN t.typtype <> 'd' THEN nt.nspname ELSE null END
AS sql_identifier) AS udt_schema,
CAST(CASE WHEN t.typbasetype = 0 THEN t.typname ELSE null END
CAST(CASE WHEN t.typtype <> 'd' THEN t.typname ELSE null END
AS sql_identifier) AS udt_name,
CAST(null AS sql_identifier) AS scope_catalog,
@ -298,17 +309,28 @@ CREATE VIEW domains AS
CAST(null AS sql_identifier) AS collation_name,
CAST(
CASE WHEN t.typbasetype IN (1700) THEN ((t.typtypmod - 4) >> 16) & 65535 ELSE null END
CASE t.typbasetype
WHEN 21 /*int2*/ THEN 16
WHEN 23 /*int4*/ THEN 32
WHEN 20 /*int8*/ THEN 64
WHEN 1700 /*numeric*/ THEN ((t.typtypmod - 4) >> 16) & 65535
WHEN 700 /*float4*/ THEN 24 /*FLT_MANT_DIG*/
WHEN 701 /*float8*/ THEN 53 /*DBL_MANT_DIG*/
ELSE null END
AS cardinal_number)
AS numeric_precision,
CAST(
CASE WHEN t.typbasetype IN (1700) THEN 10 ELSE null END
CASE WHEN t.typbasetype IN (21, 23, 20, 700, 701) THEN 2
WHEN t.typbasetype IN (1700) THEN 10
ELSE null END
AS cardinal_number)
AS numeric_precision_radix,
CAST(
CASE WHEN t.typbasetype IN (1700) THEN (t.typtypmod - 4) & 65535 ELSE null END
CASE WHEN t.typbasetype IN (21, 23, 20) THEN 0
WHEN t.typbasetype IN (1700) THEN (t.typtypmod - 4) & 65535
ELSE null END
AS cardinal_number)
AS numeric_scale,
@ -347,11 +369,11 @@ CREATE VIEW domains AS
WHERE rs.oid = t.typnamespace
AND t.typtype = 'd'
AND t.typowner = u.usesysid
AND (u.usename = CURRENT_USER
AND (u.usename = current_user
OR EXISTS (SELECT 1
FROM pg_user AS u2
WHERE rs.nspowner = u2.usesysid
AND u2.usename = CURRENT_USER)
AND u2.usename = current_user)
OR EXISTS (SELECT 1
FROM pg_user AS u3,
pg_attribute AS a3,