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authorTom Lane <tgl@sss.pgh.pa.us>2001-06-05 05:26:05 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2001-06-05 05:26:05 +0000
commit7c579fa12df0def35192e1e3cfc9ea7ab90bb0cb (patch)
tree70886176df00ac556e7992fde6e2ffd7c90530f9 /src/backend/utils/adt/numeric.c
parent28d2420eefdacfa928138d4b302fd6a31286225b (diff)
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Further work on making use of new statistics in planner. Adjust APIs
of costsize.c routines to pass Query root, so that costsize can figure more things out by itself and not be so dependent on its callers to tell it everything it needs to know. Use selectivity of hash or merge clause to estimate number of tuples processed internally in these joins (this is more useful than it would've been before, since eqjoinsel is somewhat more accurate than before).
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