Small patch fixing a query correctness issue in Gin with operator classes implementing Consistent functions

Vinod Sridharan <vsridh90@gmail.com>

From: Vinod Sridharan <vsridh90@gmail.com>

To: pgsql-hackers@postgresql.org

Date: 2025-04-12T03:58:08Z

Lists: pgsql-hackers

Attachments

v1-0001-Fix-shimTriConsistentFn-mutating-the-entryRes-val.patch (application/octet-stream) patch v1-0001

Hi All,

Please find a small patch to fix an existing bug in the GIN index that
impacts correctness of query results for operator classes that use a
consistentFunction and do not specify a triConsistent function. This
patch is against the master and fixes an issue not in any release
branches.

Please find the thread discussing this issue and the fix here:
https://www.postgresql.org/message-id/flat/CAFMdLD4Ks5b%3DCbBh1PjFSytm0zdNv9-ddyeE%2BopusAKCVph7%3Dg%40mail.gmail.com

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Thanks and Regards,
Vinod Sridharan
[Microsoft]