Обсуждение: pgsql/ oc/src/sgml/ref/create_index.sgml rc/ba ...

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pgsql/ oc/src/sgml/ref/create_index.sgml rc/ba ...

От
Tom Lane
Дата:
CVSROOT:    /home/projects/pgsql/cvsroot
Module name:    pgsql
Changes by:    tgl@hub.org    01/08/06 14:09:45

Modified files:
    doc/src/sgml/ref: create_index.sgml
    src/backend/commands: indexcmds.c
    src/backend/optimizer/path: indxpath.c

Log message:
    Modify partial-index-predicate applicability tester to test whether
    clauses are equal(), before trying to match them up using btree opclass
    inference rules.  This allows it to recognize many simple cases involving
    non-btree operations, for example 'x IS NULL'.  Clean up code a little.