Take the statistics collector out of the loop for monitoring backends'

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current commands; instead, store current-status information in shared
memory.  This substantially reduces the overhead of stats_command_string
and also ensures that pg_stat_activity is fully up to date at all times.
Per my recent proposal.

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This commit is contained in:

Tom Lane

2006-06-19 01:51:22 +00:00

parent 6075feed40

commit b13c9686d0

11 changed files with 880 additions and 1198 deletions

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src/backend/postmaster/pgstat.c

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