Dann Corbit wrote:
I do not clearly understand the sorting code in PostgreSQL. If I did
have a good grasp of it, I would take a go at improving it.
"Show me the code" (and the benchmarks).
Seriously. We see regular discussions on this and similar topics, but I
haven't seen a patch that anyone has proven is an unequivocal
improvement. that I can recall.
cheers
andrew
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
