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Raise error on concurrent drop of partitioned index

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We were already raising an error for DROP INDEX CONCURRENTLY on a
partitioned table, albeit a different and confusing one:
  ERROR:  DROP INDEX CONCURRENTLY must be first action in transaction

Change that to throw a more comprehensible error:
  ERROR:  cannot drop partitioned index \"%s\" concurrently

Michael Paquier authored the test case for indexes on temporary
partitioned tables.

Backpatch to 11, where indexes on partitioned tables were added.

Reported-by: Jan Mussler <jan.mussler@zalando.de>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/16594-d2956ca909585067@postgresql.org
This commit is contained in:
Alvaro Herrera
2020-09-01 13:40:43 -04:00
parent 55aea0c706
commit 7067ba1b4b
4 changed files with 46 additions and 0 deletions
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2
doc/src/sgml/ref/drop_index.sgml
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@ -57,6 +57,8 @@ DROP INDEX [ CONCURRENTLY ] [ IF EXISTS ] <replaceable class="parameter">name</r
Also, regular <command>DROP INDEX</command> commands can be
performed within a transaction block, but
<command>DROP INDEX CONCURRENTLY</command> cannot.
Lastly, indexes on partitioned tables cannot be dropped using this
option.
</para>
<para>
For temporary tables, <command>DROP INDEX</command> is always