Fix up pgstats counting of live and dead tuples to recognize that committed

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and aborted transactions have different effects; also teach it not to assume
that prepared transactions are always committed.

Along the way, simplify the pgstats API by tying counting directly to
Relations; I cannot detect any redeeming social value in having stats
pointers in HeapScanDesc and IndexScanDesc structures.  And fix a few
corner cases in which counts might be missed because the relation's
pgstat_info pointer hadn't been set.

...

This commit is contained in:

Tom Lane

2007-05-27 03:50:39 +00:00

parent cadb78330e

commit 77947c51c0

20 changed files with 805 additions and 417 deletions

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src/backend/postmaster/pgstat.c

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