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sql: use bare name string of new pk to compare with pk name when altering primary key #90865

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chengxiong-ruan
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Fixes #90836

Release note (sql change): previously, the DROP CONSTRAINT, ADD CONSTRAINT in one trick to have a new primary key without moving old primary key to be a secondary index didn't work if the primary key name is a reserved SQL keyword. A constraint already exists error was returned. This patch fixed the bug, the trick now also works with primary key named as reserved keywords.

@chengxiong-ruan chengxiong-ruan requested a review from a team October 28, 2022 19:30
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Fixes cockroachdb#90836

Release note (sql change): previously, the `DROP CONSTRAINT, ADD CONSTRAINT`
in one trick to have a new primary key without moving old
primary key to be a secondary index didn't work if the primary
key name is a reserved SQL keyword. A `constraint already exists`
error was returned. This patch fixed the bug, the trick now
also works with primary key named as reserved keywords.
@chengxiong-ruan chengxiong-ruan force-pushed the use-bare-string-when-comparing-pkey-name branch from 5699779 to 746f8f9 Compare October 28, 2022 19:31
@postamar postamar added the backport-22.2.x Flags PRs that need to be backported to 22.2. label Oct 28, 2022
@chengxiong-ruan
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Thanks for the review and adding backport flag!
bors r+

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craig bot commented Oct 31, 2022

Build failed (retrying...):

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craig bot commented Oct 31, 2022

Build succeeded:

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sql: Drop and add a primary key constraint trick doesn't work with primary key named as sql keyword
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