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 Branch ------ REL9_0_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/1da2a610d7e791e93fcf835855badaeb11196bdd Modified Files -------------- src/backend/access/gist/gistutil.c | 98 ++++++++++++++++++++++++++--------- 1 files changed, 73 insertions(+), 25 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
