Jeff Davis b419865a81 In array_agg(), don't create a new context for every group. ...

Previously, each new array created a new memory context that started
out at 8kB. This is incredibly wasteful when there are lots of small
groups of just a few elements each.

Change initArrayResult() and friends to accept a "subcontext" argument
to indicate whether the caller wants the ArrayBuildState allocated in
a new subcontext or not. If not, it can no longer be released
separately from the rest of the memory context.

Fixes bug report by Frank van Vugt on 2013-10-19.

Tomas Vondra. Reviewed by Ali Akbar, Tom Lane, and me.

2015-02-21 17:24:48 -08:00

..

backend

In array_agg(), don't create a new context for every group.

2015-02-21 17:24:48 -08:00

bin

Use FLEXIBLE_ARRAY_MEMBER in a bunch more places.

2015-02-20 00:11:42 -05:00

common

Speed up CRC calculation using slicing-by-8 algorithm.

2015-02-10 10:54:40 +02:00

include

In array_agg(), don't create a new context for every group.

2015-02-21 17:24:48 -08:00

interfaces

Use FLEXIBLE_ARRAY_MEMBER in a number of other places.

2015-02-21 16:12:14 -05:00

makefiles

Revert haphazard pgxs makefile changes

2014-12-04 08:07:59 -05:00

pl

In array_agg(), don't create a new context for every group.

2015-02-21 17:24:48 -08:00

port

Try to fix busted gettimeofday() code.

2015-02-21 17:15:13 -05:00

template

Remove duplicate specification of -Ae for HP-UX C compiler.

2015-01-13 22:52:11 -05:00

test

Remove unnecessary and unreliable test

2015-02-20 14:03:49 -03:00

timezone

Update time zone data files to tzdata release 2015a.

2015-01-30 22:45:44 -05:00

tools

Fix Perl coding error in msvc build system

2015-02-18 20:24:30 -05:00

tutorial

Update copyright for 2015

2015-01-06 11:43:47 -05:00

.gitignore

…

bcc32.mak

Autoconfiscate selection of 64-bit int type for 64-bit large object API.

2012-10-07 21:52:43 -04:00

DEVELOPERS

…

Makefile

Create libpgcommon, and move pg_malloc et al to it

2013-02-12 11:21:05 -03:00

Makefile.global.in

Fix installcheck case for tap tests

2014-12-24 10:31:36 -05:00

Makefile.shlib

Install shared libraries also in bin on cygwin, mingw

2015-01-18 22:36:40 -05:00

nls-global.mk

Setup error context callback for transaction lock waits

2014-03-19 15:10:36 -03:00

win32.mak

Autoconfiscate selection of 64-bit int type for 64-bit large object API.

2012-10-07 21:52:43 -04:00