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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2011-01-25 17:51:59 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2011-01-25 17:51:59 -0500 |
| commit | bd1ad1b019cda851a3e925133c056930368e6424 (patch) | |
| tree | 7a0457da38302b33a9ffb79f2904174b22b1805c /doc/src | |
| parent | 88452d5ba6b3e8ad49133ac1a660ce0725710f8c (diff) | |
| download | postgresql-bd1ad1b019cda851a3e925133c056930368e6424.tar.gz postgresql-bd1ad1b019cda851a3e925133c056930368e6424.zip | |
Replace pg_class.relhasexclusion with pg_index.indisexclusion.
There isn't any need to track this state on a table-wide basis, and trying
to do so introduces undesirable semantic fuzziness. Move the flag to
pg_index, where it clearly describes just a single index and can be
immutable after index creation.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/catalogs.sgml | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 0703df6434e..cdc85e5cc07 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -1707,17 +1707,6 @@ </row> <row> - <entry><structfield>relhasexclusion</structfield></entry> - <entry><type>bool</type></entry> - <entry></entry> - <entry> - For a table, true if the table has (or once had) any exclusion - constraints; for an index, true if the index supports an exclusion - constraint - </entry> - </row> - - <row> <entry><structfield>relhasrules</structfield></entry> <entry><type>bool</type></entry> <entry></entry> @@ -2046,8 +2035,7 @@ <para> <literal>pg_class.relchecks</literal> needs to agree with the number of check-constraint entries found in this table for each - relation. Also, <literal>pg_class.relhasexclusion</literal> must - be true if there are any exclusion-constraint entries for the relation. + relation. </para> </note> @@ -3057,11 +3045,19 @@ </row> <row> + <entry><structfield>indisexclusion</structfield></entry> + <entry><type>bool</type></entry> + <entry></entry> + <entry>If true, this index supports an exclusion constraint</entry> + </row> + + <row> <entry><structfield>indimmediate</structfield></entry> <entry><type>bool</type></entry> <entry></entry> - <entry>If true, the uniqueness check is enforced immediately on insertion - (<structfield>indisunique</> should always be true when this is true)</entry> + <entry>If true, the uniqueness check is enforced immediately on + insertion + (irrelevant if <structfield>indisunique</> is not true)</entry> </row> <row> |