pgsql-server/src backend/optimizer/path/indxpa ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    03/05/13 00:38:58

Modified files:
    src/backend/optimizer/path: indxpath.c
    src/backend/utils/cache: lsyscache.c syscache.c
    src/backend/utils/sort: tuplesort.c
    src/include/catalog: catversion.h indexing.h

Log message:
    Change pg_amop's index on (amopclaid,amopopr) to index (amopopr,amopclaid).
    This makes no difference for existing uses, but allows SelectSortFunction()
    and pred_test_simple_clause() to use indexscans instead of seqscans to
    locate entries for a particular operator in pg_amop.  Better yet, they can
    use the SearchSysCacheList() API to cache the search results.