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Remove obsolete information schema tables
Remove SQL_LANGUAGES, which was eliminated in SQL:2008, and SQL_PACKAGES and SQL_SIZING_PROFILES, which were eliminated in SQL:2011. Since they were dropped by the SQL standard, the information in them was no longer updated and therefore no longer useful. This also removes the feature-package association information in sql_feature_packages.txt, but for the time begin we are keeping the information which features are in the Core package (that is, mandatory SQL features). Maybe at some point someone wants to invent a way to store that that does not involve using the "package" mechanism anymore. Discussion https://www.postgresql.org/message-id/flat/91334220-7900-071b-9327-0c6ecd012017%402ndquadrant.com
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‎doc/src/sgml/features.sgml‎

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@@ -44,10 +44,7 @@
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broad three levels found in <acronym>SQL-92</acronym>. A large
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subset of these features represents the <quote>Core</quote>
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features, which every conforming SQL implementation must supply.
47-
The rest of the features are purely optional. Some optional
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features are grouped together to form <quote>packages</quote>, which
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SQL implementations can claim conformance to, thus claiming
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conformance to particular groups of features.
47+
The rest of the features are purely optional.
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</para>
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5350
<para>
@@ -116,7 +113,7 @@
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<thead>
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<row>
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<entry>Identifier</entry>
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<entry>Package</entry>
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<entry>Core?</entry>
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<entry>Description</entry>
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<entry>Comment</entry>
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</row>
@@ -143,7 +140,7 @@
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<thead>
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<row>
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<entry>Identifier</entry>
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<entry>Package</entry>
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<entry>Core?</entry>
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<entry>Description</entry>
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<entry>Comment</entry>
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</row>

‎doc/src/sgml/information_schema.sgml‎

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@@ -4963,160 +4963,6 @@ ORDER BY c.ordinal_position;
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</table>
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</sect1>
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<sect1 id="infoschema-sql-languages">
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<title><literal>sql_languages</literal></title>
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<para>
4970-
The table <literal>sql_languages</literal> contains one row for
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each SQL language binding that is supported by
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<productname>PostgreSQL</productname>.
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<productname>PostgreSQL</productname> supports direct SQL and
4974-
embedded SQL in C; that is all you will learn from this table.
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</para>
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<para>
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This table was removed from the SQL standard in SQL:2008, so there
4979-
are no entries referring to standards later than SQL:2003.
4980-
</para>
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<table>
4983-
<title><literal>sql_languages</literal> Columns</title>
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<tgroup cols="3">
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<thead>
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<row>
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<entry>Name</entry>
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<entry>Data Type</entry>
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<entry>Description</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry><literal>sql_language_source</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>
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The name of the source of the language definition; always
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<literal>ISO 9075</literal>, that is, the SQL standard
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</entry>
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</row>
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<row>
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<entry><literal>sql_language_year</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>
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The year the standard referenced in
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<literal>sql_language_source</literal> was approved.
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</entry>
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</row>
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<row>
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<entry><literal>sql_language_conformance</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>
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The standard conformance level for the language binding. For
5018-
ISO 9075:2003 this is always <literal>CORE</literal>.
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</entry>
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</row>
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<row>
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<entry><literal>sql_language_integrity</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>Always null (This value is relevant to an earlier version of the SQL standard.)</entry>
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</row>
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<row>
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<entry><literal>sql_language_implementation</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>Always null</entry>
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</row>
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<row>
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<entry><literal>sql_language_binding_style</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>
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The language binding style, either <literal>DIRECT</literal> or
5039-
<literal>EMBEDDED</literal>
5040-
</entry>
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</row>
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<row>
5044-
<entry><literal>sql_language_programming_language</literal></entry>
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<entry><type>character_data</type></entry>
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<entry>
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The programming language, if the binding style is
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<literal>EMBEDDED</literal>, else null. <productname>PostgreSQL</productname> only
5049-
supports the language C.
5050-
</entry>
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</row>
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</tbody>
5053-
</tgroup>
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</table>
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</sect1>
5056-
5057-
<sect1 id="infoschema-sql-packages">
5058-
<title><literal>sql_packages</literal></title>
5059-
5060-
<para>
5061-
The table <literal>sql_packages</literal> contains information
5062-
about which feature packages defined in the SQL standard are
5063-
supported by <productname>PostgreSQL</productname>. Refer to <xref
5064-
linkend="features"/> for background information on feature packages.
5065-
</para>
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<table>
5068-
<title><literal>sql_packages</literal> Columns</title>
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5070-
<tgroup cols="3">
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<thead>
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<row>
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<entry>Name</entry>
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<entry>Data Type</entry>
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<entry>Description</entry>
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</row>
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</thead>
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5079-
<tbody>
5080-
<row>
5081-
<entry><literal>feature_id</literal></entry>
5082-
<entry><type>character_data</type></entry>
5083-
<entry>Identifier string of the package</entry>
5084-
</row>
5085-
5086-
<row>
5087-
<entry><literal>feature_name</literal></entry>
5088-
<entry><type>character_data</type></entry>
5089-
<entry>Descriptive name of the package</entry>
5090-
</row>
5091-
5092-
<row>
5093-
<entry><literal>is_supported</literal></entry>
5094-
<entry><type>yes_or_no</type></entry>
5095-
<entry>
5096-
<literal>YES</literal> if the package is fully supported by the
5097-
current version of <productname>PostgreSQL</productname>, <literal>NO</literal> if not
5098-
</entry>
5099-
</row>
5100-
5101-
<row>
5102-
<entry><literal>is_verified_by</literal></entry>
5103-
<entry><type>character_data</type></entry>
5104-
<entry>
5105-
Always null, since the <productname>PostgreSQL</productname> development group does not
5106-
perform formal testing of feature conformance
5107-
</entry>
5108-
</row>
5109-
5110-
<row>
5111-
<entry><literal>comments</literal></entry>
5112-
<entry><type>character_data</type></entry>
5113-
<entry>Possibly a comment about the supported status of the package</entry>
5114-
</row>
5115-
</tbody>
5116-
</tgroup>
5117-
</table>
5118-
</sect1>
5119-
51204966
<sect1 id="infoschema-sql-parts">
51214967
<title><literal>sql_parts</literal></title>
51224968

@@ -5239,68 +5085,6 @@ ORDER BY c.ordinal_position;
52395085
</table>
52405086
</sect1>
52415087

5242-
<sect1 id="infoschema-sql-sizing-profiles">
5243-
<title><literal>sql_sizing_profiles</literal></title>
5244-
5245-
<para>
5246-
The table <literal>sql_sizing_profiles</literal> contains
5247-
information about the <literal>sql_sizing</literal> values that are
5248-
required by various profiles of the SQL standard. <productname>PostgreSQL</productname> does
5249-
not track any SQL profiles, so this table is empty.
5250-
</para>
5251-
5252-
<table>
5253-
<title><literal>sql_sizing_profiles</literal> Columns</title>
5254-
5255-
<tgroup cols="3">
5256-
<thead>
5257-
<row>
5258-
<entry>Name</entry>
5259-
<entry>Data Type</entry>
5260-
<entry>Description</entry>
5261-
</row>
5262-
</thead>
5263-
5264-
<tbody>
5265-
<row>
5266-
<entry><literal>sizing_id</literal></entry>
5267-
<entry><type>cardinal_number</type></entry>
5268-
<entry>Identifier of the sizing item</entry>
5269-
</row>
5270-
5271-
<row>
5272-
<entry><literal>sizing_name</literal></entry>
5273-
<entry><type>character_data</type></entry>
5274-
<entry>Descriptive name of the sizing item</entry>
5275-
</row>
5276-
5277-
<row>
5278-
<entry><literal>profile_id</literal></entry>
5279-
<entry><type>character_data</type></entry>
5280-
<entry>Identifier string of a profile</entry>
5281-
</row>
5282-
5283-
<row>
5284-
<entry><literal>required_value</literal></entry>
5285-
<entry><type>cardinal_number</type></entry>
5286-
<entry>
5287-
The value required by the SQL profile for the sizing item, or 0
5288-
if the profile places no limit on the sizing item, or null if
5289-
the profile does not require any of the features for which the
5290-
sizing item is applicable
5291-
</entry>
5292-
</row>
5293-
5294-
<row>
5295-
<entry><literal>comments</literal></entry>
5296-
<entry><type>character_data</type></entry>
5297-
<entry>Possibly a comment pertaining to the sizing item within the profile</entry>
5298-
</row>
5299-
</tbody>
5300-
</tgroup>
5301-
</table>
5302-
</sect1>
5303-
53045088
<sect1 id="infoschema-table-constraints">
53055089
<title><literal>table_constraints</literal></title>
53065090

‎src/backend/catalog/information_schema.sql‎

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@@ -1648,56 +1648,6 @@ INSERT INTO sql_implementation_info VALUES ('46', 'TRANSACTION CAPABLE', 2, N
16481648
GRANT SELECT ON sql_implementation_info TO PUBLIC;
16491649

16501650

1651-
/*
1652-
* SQL_LANGUAGES table
1653-
* apparently removed in SQL:2008
1654-
*/
1655-
1656-
CREATE TABLE sql_languages (
1657-
sql_language_source character_data,
1658-
sql_language_year character_data,
1659-
sql_language_conformance character_data,
1660-
sql_language_integrity character_data,
1661-
sql_language_implementation character_data,
1662-
sql_language_binding_style character_data,
1663-
sql_language_programming_language character_data
1664-
);
1665-
1666-
INSERT INTO sql_languages VALUES ('ISO 9075', '1999', 'CORE', NULL, NULL, 'DIRECT', NULL);
1667-
INSERT INTO sql_languages VALUES ('ISO 9075', '1999', 'CORE', NULL, NULL, 'EMBEDDED', 'C');
1668-
INSERT INTO sql_languages VALUES ('ISO 9075', '2003', 'CORE', NULL, NULL, 'DIRECT', NULL);
1669-
INSERT INTO sql_languages VALUES ('ISO 9075', '2003', 'CORE', NULL, NULL, 'EMBEDDED', 'C');
1670-
1671-
GRANT SELECT ON sql_languages TO PUBLIC;
1672-
1673-
1674-
/*
1675-
* SQL_PACKAGES table
1676-
* removed in SQL:2011
1677-
*/
1678-
1679-
CREATE TABLE sql_packages (
1680-
feature_id character_data,
1681-
feature_name character_data,
1682-
is_supported yes_or_no,
1683-
is_verified_by character_data,
1684-
comments character_data
1685-
);
1686-
1687-
INSERT INTO sql_packages VALUES ('PKG000', 'Core', 'NO', NULL, '');
1688-
INSERT INTO sql_packages VALUES ('PKG001', 'Enhanced datetime facilities', 'YES', NULL, '');
1689-
INSERT INTO sql_packages VALUES ('PKG002', 'Enhanced integrity management', 'NO', NULL, '');
1690-
INSERT INTO sql_packages VALUES ('PKG003', 'OLAP facilities', 'NO', NULL, '');
1691-
INSERT INTO sql_packages VALUES ('PKG004', 'PSM', 'NO', NULL, 'PL/pgSQL is similar.');
1692-
INSERT INTO sql_packages VALUES ('PKG005', 'CLI', 'NO', NULL, 'ODBC is similar.');
1693-
INSERT INTO sql_packages VALUES ('PKG006', 'Basic object support', 'NO', NULL, '');
1694-
INSERT INTO sql_packages VALUES ('PKG007', 'Enhanced object support', 'NO', NULL, '');
1695-
INSERT INTO sql_packages VALUES ('PKG008', 'Active database', 'NO', NULL, '');
1696-
INSERT INTO sql_packages VALUES ('PKG010', 'OLAP', 'NO', NULL, 'NO');
1697-
1698-
GRANT SELECT ON sql_packages TO PUBLIC;
1699-
1700-
17011651
/*
17021652
* 5.59
17031653
* SQL_PARTS table
@@ -1768,26 +1718,6 @@ UPDATE sql_sizing
17681718
GRANT SELECT ON sql_sizing TO PUBLIC;
17691719

17701720

1771-
/*
1772-
* SQL_SIZING_PROFILES table
1773-
* removed in SQL:2011
1774-
*/
1775-
1776-
-- The data in this table are defined by various profiles of SQL.
1777-
-- Since we don't have any information about such profiles, we provide
1778-
-- an empty table.
1779-
1780-
CREATE TABLE sql_sizing_profiles (
1781-
sizing_id cardinal_number,
1782-
sizing_name character_data,
1783-
profile_id character_data,
1784-
required_value cardinal_number,
1785-
comments character_data
1786-
);
1787-
1788-
GRANT SELECT ON sql_sizing_profiles TO PUBLIC;
1789-
1790-
17911721
/*
17921722
* 5.61
17931723
* TABLE_CONSTRAINTS view

‎src/backend/catalog/sql_feature_packages.txt‎

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@@ -22,46 +22,17 @@ F021 Core
2222
F031 Core
2323
F041 Core
2424
F051 Core
25-
F052 Enhanced datetime facilities
2625
F081 Core
2726
F131 Core
2827
F181 Core
29-
F191 Enhanced integrity management
3028
F201 Core
3129
F221 Core
3230
F261 Core
3331
F311 Core
34-
F411 Enhanced datetime facilities
3532
F471 Core
3633
F481 Core
37-
F491 Enhanced integrity management
3834
F501 Core
39-
F521 Enhanced integrity management
40-
F555 Enhanced datetime facilities
41-
F671 Enhanced integrity management
42-
F701 Enhanced integrity management
4335
F812 Core
4436
S011 Core
45-
S023 Basic object support
46-
S024 Enhanced object support
47-
S041 Basic object support
48-
S043 Enhanced object support
49-
S051 Basic object support
50-
S071 Enhanced object support
51-
S081 Enhanced object support
52-
S111 Enhanced object support
53-
S151 Basic object support
54-
S161 Enhanced object support
55-
S211 Enhanced object support
56-
S231 Enhanced object support
57-
T041 Basic object support
58-
T191 Enhanced integrity management
59-
T201 Enhanced integrity management
60-
T211 Active database
61-
T211 Enhanced integrity management
62-
T212 Enhanced integrity management
6337
T321 Core
64-
T322 PSM
65-
T431 OLAP
66-
T611 OLAP
6738
T631 Core

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