Обсуждение: pgsql-server/src backend/catalog/dependency.c ...

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pgsql-server/src backend/catalog/dependency.c ...

От
tgl@postgresql.org (Tom Lane)
Дата:
CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    02/11/30 16:25:09

Modified files:
    src/backend/catalog: dependency.c
    src/backend/executor: execQual.c
    src/backend/optimizer/plan: setrefs.c
    src/backend/optimizer/util: clauses.c
    src/backend/parser: parse_expr.c
    src/include/nodes: primnodes.h
    src/pl/plpgsql/src: pl_exec.c

Log message:
    Code review for IS DISTINCT FROM patch.  Fix incorrect constant-folding
    logic, dissuade planner from thinking that 'x IS DISTINCT FROM 42' may
    be optimized into 'x = 42' (!!), cause dependency on = operator to be
    recorded correctly, minor other improvements.

Re: pgsql-server/src backend/catalog/dependency.c ...

От
"Christopher Kings-Lynne"
Дата:
> Log message:
> Code review for IS DISTINCT FROM patch.  Fix incorrect constant-folding
> logic, dissuade planner from thinking that 'x IS DISTINCT FROM 42' may
> be optimized into 'x = 42' (!!), cause dependency on = operator to be
> recorded correctly, minor other improvements.

Should that be back patched for 7.3.1?

Chris

Re: pgsql-server/src backend/catalog/dependency.c ...

От
Tom Lane
Дата:
"Christopher Kings-Lynne" <chriskl@familyhealth.com.au> writes:
>> Code review for IS DISTINCT FROM patch.

> Should that be back patched for 7.3.1?

Given the rather complete lack of documentation for IS DISTINCT FROM
in 7.3, I'm not too concerned about anyone trying to use it ;-)

            regards, tom lane