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Remove pg_class.relhaspkey

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It is not used for anything internally, and it cannot be relied on for
external uses, so it can just be removed.  To correct recommended way to
check for a primary key is in pg_index.

Discussion: https://www.postgresql.org/message-id/flat/b1a24c6c-6913-f89c-674e-0704f0ed69db@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2018-03-14 14:59:40 -04:00
parent 6b960aae90
commit f66e8bf875
7 changed files with 21 additions and 72 deletions
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9
doc/src/sgml/catalogs.sgml
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@ -1848,15 +1848,6 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
</entry>
</row>
<row>
<entry><structfield>relhaspkey</structfield></entry>
<entry><type>bool</type></entry>
<entry></entry>
<entry>
True if the table has (or once had) a primary key
</entry>
</row>
<row>
<entry><structfield>relhasrules</structfield></entry>
<entry><type>bool</type></entry>