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Remove pg_constraint.conincluding

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This column was added in commit 8224de4f42 ("Indexes with INCLUDE
columns and their support in B-tree") to ease writing the ruleutils.c
supporting code for that feature, but it turns out to be unnecessary --
we can do the same thing with just one more syscache lookup.

Even the documentation for the new column being removed in this commit
is awkward.

Discussion: https://postgr.es/m/20180902165018.33otxftp3olgtu4t@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
2018-09-03 12:58:42 -03:00
parent 4ddd8f5f55
commit c076f3d74a
7 changed files with 71 additions and 73 deletions
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8
doc/src/sgml/catalogs.sgml
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@ -2373,14 +2373,6 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
triggers), list of the constrained columns</entry>
</row>
<row>
<entry><structfield>conincluding</structfield></entry>
<entry><type>int2[]</type></entry>
<entry><literal><link linkend="catalog-pg-attribute"><structname>pg_attribute</structname></link>.attnum</literal></entry>
<entry>List of the non-constrained columns which are included into
the same index as the constrained columns</entry>
</row>
<row>
<entry><structfield>confkey</structfield></entry>
<entry><type>int2[]</type></entry>