Обсуждение: pgsql-server/src/backend/optimizer plan/create ...

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pgsql-server/src/backend/optimizer plan/create ...

От
tgl@postgresql.org (Tom Lane)
Дата:
CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    03/01/21 19:07:01

Modified files:
    src/backend/optimizer/plan: createplan.c
    src/backend/optimizer/util: pathnode.c

Log message:
    Implement choice between hash-based and sort-based grouping for doing
    DISTINCT processing on the output of an IN sub-select.