Tom Lane wrote:
Adding cache
lookups for the enum rows to the comarison routines made a REINDEX on a
1m row table where the index is on an enum column (the enum has 500
randomly ordered labels) jump from around 10s to around 70s.
Hmmm... that's bad, but I bet it's still less than the cost of comparing
NUMERICs. Also, did you make any attempt to avoid repetitive cache
lookups by storing a pointer in fn_extra (cf array comparisons)?
No. Will work on that. Thanks.
cheers
andrew
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