New two-stage sampling method for ANALYZE, as per discussions a few weeks
authorTom Lane <tgl@sss.pgh.pa.us>
Sun, 23 May 2004 21:24:02 +0000 (21:24 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Sun, 23 May 2004 21:24:02 +0000 (21:24 +0000)
commit9d6570b8a479c76f2259b45b9281bbc73693876e
tree9eb141e98cc90b4c746e5ba83a9c2202e02c79cb
parent27edff700efdcecb11421c922a68149b8a9d457c
New two-stage sampling method for ANALYZE, as per discussions a few weeks
ago.  This should give significantly better results when the density of
live tuples is not uniform throughout a table.  Manfred Koizar, with
minor kibitzing from Tom Lane.
src/backend/commands/analyze.c