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authorTom Lane <tgl@sss.pgh.pa.us>2001-07-31 17:56:31 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2001-07-31 17:56:31 +0000
commit421467cdc8231a9da7ae6116ce6030d7d756f137 (patch)
tree5d091f3ee3f29c17427bfdc33d86613d1e219504 /src/backend/tcop/postgres.c
parent6fbf442d5a5bba97333a6b0e7358599472bcd52d (diff)
downloadpostgresql-421467cdc8231a9da7ae6116ce6030d7d756f137.tar.gz
postgresql-421467cdc8231a9da7ae6116ce6030d7d756f137.zip
Fix optimizer to not try to push WHERE clauses down into a sub-SELECT that
has a DISTINCT ON clause, per bug report from Anthony Wood. While at it, improve the DISTINCT-ON-clause recognizer routine to not be fooled by out- of-order DISTINCT lists.
Diffstat (limited to 'src/backend/tcop/postgres.c')
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