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authorTom Lane <tgl@sss.pgh.pa.us>2005-03-06 22:15:05 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2005-03-06 22:15:05 +0000
commit849074f9ae422c64501bb1d53ef840de870bf65c (patch)
tree9ac33ca6df68410da184659a4b0ca67f7bdf8bef /src/backend/executor/nodeMergejoin.c
parent31b6d840f6fdbf3d272e7bf8ec0461742edcdd46 (diff)
downloadpostgresql-849074f9ae422c64501bb1d53ef840de870bf65c.tar.gz
postgresql-849074f9ae422c64501bb1d53ef840de870bf65c.zip
Revise hash join code so that we can increase the number of batches
on-the-fly, and thereby avoid blowing out memory when the planner has underestimated the hash table size. Hash join will now obey the work_mem limit with some faithfulness. Per my recent proposal (hash aggregate part isn't done yet though).
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