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authorTom Lane <tgl@sss.pgh.pa.us>2007-05-27 03:50:39 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2007-05-27 03:50:39 +0000
commit77947c51c08179b8bc12347a7fbcb2c8d7908302 (patch)
tree0a306ea177817fdadc0e4421b6d8dd212c11e6e3 /src/backend/lib/stringinfo.c
parentcadb78330eedceafeda99bf12ac690cda773be62 (diff)
downloadpostgresql-77947c51c08179b8bc12347a7fbcb2c8d7908302.tar.gz
postgresql-77947c51c08179b8bc12347a7fbcb2c8d7908302.zip
Fix up pgstats counting of live and dead tuples to recognize that committed
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.
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