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From tgl@postgresql.org (Tom Lane)
Subject pgsql-server/src backend/optimizer/path/allpat ...
Date
Msg-id 20030424234309.A69F4475AE4@postgresql.org
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CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    03/04/24 19:43:09

Modified files:
    src/backend/optimizer/path: allpaths.c
    src/backend/optimizer/prep: prepunion.c
    src/include/optimizer: prep.h

Log message:
    Adjust subquery qual pushdown rules so that we can push down a qual
    into a UNION that has some type coercions applied to the component
    queries, so long as the qual itself does not reference any columns that
    have such coercions.  Per example from Jonathan Bartlett 24-Apr-03.

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