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Replace the KnownAssignedXids hash table with a sorted-array data structure,

author Tom Lane <tgl@sss.pgh.pa.us>

2010年4月28日 00:09:05 +0000 (00:09 +0000)

committer Tom Lane <tgl@sss.pgh.pa.us>

2010年4月28日 00:09:05 +0000 (00:09 +0000)

commit 2871b4618af1acc85665eec0912c48f8341504c4

tree c8ff6ec3c15ae9bdfa6d2958b46b3b9533a3aec3 tree

parent 871e73bb276506ca591083f0b343951ba0db6989 commit | diff

Replace the KnownAssignedXids hash table with a sorted-array data structure,
and be more tense about the locking requirements for it, to improve performance
in Hot Standby mode. In passing fix a few bugs and improve a number of
comments in the existing HS code.

Simon Riggs, with some editorialization by Tom

src/backend/access/transam/twophase.c diff | blob | blame | history

src/backend/storage/ipc/procarray.c diff | blob | blame | history

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