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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2012-08-30 23:47:54 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2012-08-30 23:47:54 -0400 |
| commit | 6707dd48cdfcc95934a89df5ad4c4c2ecf0e5225 (patch) | |
| tree | 1a060de315f5a2e567448783d57170e3a27adceb /src/backend/access/gist/gist.c | |
| parent | f6956eb74edcdf21339f9d200ef63c4015a5f4cb (diff) | |
| download | postgresql-6707dd48cdfcc95934a89df5ad4c4c2ecf0e5225.tar.gz postgresql-6707dd48cdfcc95934a89df5ad4c4c2ecf0e5225.zip | |
Back-patch recent fixes for gistchoose and gistRelocateBuildBuffersOnSplit.
This back-ports commits c8ba697a4bdb934f0c51424c654e8db6133ea255 and
e5db11c5582b469c04a11f217a0f32c827da5dd7, which fix one definite and one
speculative bug in gistchoose, and make the code a lot more intelligible as
well. In 9.2 only, this also affects the largely-copied-and-pasted logic
in gistRelocateBuildBuffersOnSplit.
The impact of the bugs was that the functions might make poor decisions
as to which index tree branch to push a new entry down into, resulting in
GiST index bloat and poor performance. The fixes rectify these decisions
for future insertions, but a REINDEX would be needed to clean up any
existing index bloat.
Alexander Korotkov, Robert Haas, Tom Lane
Diffstat (limited to 'src/backend/access/gist/gist.c')
0 files changed, 0 insertions, 0 deletions