Make use of statistics on index expressions. There are still some

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corner cases that could stand improvement, but it does all the basic
stuff.  A byproduct is that the selectivity routines are no longer
constrained to working on simple Vars; we might in future be able to
improve the behavior for subexpressions that don't match indexes.

...

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Tom Lane

2004-02-17 00:52:53 +00:00

parent d372bba02d

commit a536ed53bc

5 changed files with 1108 additions and 1025 deletions

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src/backend/utils/adt/selfuncs.c

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