diff options
author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-09-29 23:49:51 +0000 |
---|---|---|
committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-09-29 23:49:51 +0000 |
commit | 1663f3383849968415d29965ef9bfdf5aac4d358 (patch) | |
tree | faa41d3c7ff017311c5d42cfb98fce7d9e825d38 /src/backend/utils/adt/pgstatfuncs.c | |
parent | 1647d3ae61c46c8bce2690dc7c3b14b4299c3dd3 (diff) |
Tweak btree page split logic so that when splitting a page that is
rightmost on its tree level, we split 2/3 to the left and 1/3 to the
new right page, rather than the even split we use elsewhere. The idea
is that when faced with a steadily increasing series of inserted keys
(such as sequence or timestamp values), we'll end up with a btree that's
about 2/3ds full not 1/2 full, which is much closer to the desired
steady-state load for a btree. Per suggestion from Ann Harrison of
IBPhoenix.
Diffstat (limited to 'src/backend/utils/adt/pgstatfuncs.c')
0 files changed, 0 insertions, 0 deletions