Обсуждение: pgsql: Make constant-folding produce sane output for

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pgsql: Make constant-folding produce sane output for

От
tgl@svr1.postgresql.org (Tom Lane)
Дата:
Log Message:
-----------
Make constant-folding produce sane output for COALESCE(NULL,NULL),
that is a plain NULL and not a COALESCE with no inputs.  Fixes crash
reported by Michael Williamson.

Modified Files:
--------------
    pgsql/src/backend/optimizer/util:
        clauses.c (r1.193 -> r1.194)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/clauses.c.diff?r1=1.193&r2=1.194)