Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorTom Lane2005-06-13 23:14:49 +0000
committerTom Lane2005-06-13 23:14:49 +0000
commitc186c93148fdfa5a39972331318eda5318ff5eba (patch)
tree31195d72e9b44d701eaa9018e498145f3d46f929 /doc/FAQ_AIX
parent077811605e07212139c3df503fdaa081690635ca (diff)
Change the planner to allow indexscan qualification clauses to use
nonconsecutive columns of a multicolumn index, as per discussion around mid-May (pghackers thread "Best way to scan on-disk bitmaps"). This turns out to require only minimal changes in btree, and so far as I can see none at all in GiST. btcostestimate did need some work, but its original assumption that index selectivity == heap selectivity was quite bogus even before this.
Diffstat (limited to 'doc/FAQ_AIX')
0 files changed, 0 insertions, 0 deletions