Обсуждение: pgsql: Add selectivity-calculation code for RowCompareExpr nodes.

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pgsql: Add selectivity-calculation code for RowCompareExpr nodes.

От
tgl@postgresql.org (Tom Lane)
Дата:
Log Message:
-----------
Add selectivity-calculation code for RowCompareExpr nodes.  Simplistic,
but a lot better than nothing at all ...

Modified Files:
--------------
    pgsql/src/backend/optimizer/path:
        clausesel.c (r1.76 -> r1.77)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/clausesel.c.diff?r1=1.76&r2=1.77)
    pgsql/src/backend/utils/adt:
        selfuncs.c (r1.195 -> r1.196)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/selfuncs.c.diff?r1=1.195&r2=1.196)
    pgsql/src/include/utils:
        selfuncs.h (r1.26 -> r1.27)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/selfuncs.h.diff?r1=1.26&r2=1.27)