This has been saved for the 8.2 release:
http://momjian.postgresql.org/cgi-bin/pgpatches_hold
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Atsushi Ogawa wrote:
When sum(int4) or sum(int2) is executed, many cycles are spent by
AllocSetReset. Because
Patch already applied in 8.1 in different way.
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Atsushi Ogawa wrote:
When sum(int4) or sum(int2) is executed, many cycles are spent by
AllocSetReset. Because per-tuple context is used to allocate the
first data of
Atsushi Ogawa [EMAIL PROTECTED] writes:
An attached patch uses AggState-aggcontext instead of per-tuple
context to allocate the data. As a result, per-tuple context is not
used, and the cycles of AllocSetReset is reduced.
Why is this better than the fix already in place?
Tom Lane wrote:
Atsushi Ogawa [EMAIL PROTECTED] writes:
An attached patch uses AggState-aggcontext instead of per-tuple
context to allocate the data. As a result, per-tuple context is not
used, and the cycles of AllocSetReset is reduced.
Why is this better than the fix already in place?
Atsushi Ogawa [EMAIL PROTECTED] writes:
Tom Lane wrote:
Why is this better than the fix already in place?
Because per-tuple context is reset many times. If per-tuple context is
never used, the following codes of AllocSetReset become effective.
/* Nothing to do if context has never
