BUG #16136: Bug with cost calculation and JIT application
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PG Bug reporting form
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BUG #16136: Bug with cost calculation and JIT application
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16136-34535de58a0ff493@postgresql.org
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BUG #16136: Bug with cost calculation and JIT application PG Bug reporting form <noreply@postgresql.org>
Re: BUG #16136: Bug with cost calculation and JIT application Tomas Vondra <tomas.vondra@2ndquadrant.com>
The following bug has been logged on the website: Bug reference: 16136 Logged by: Александр Филиппенко Email address: alexfilus@gmail.com PostgreSQL version: 12.1 Operating system: Ubuntu 18.04 Description: I had very strange behaviour of optimizator. https://explain.depesz.com/s/GcHL https://explain.depesz.com/s/sTyG Both explains are for same query and same data set, but in second case I turn off JIT. I guess it's because of wrong cost calculation like this Nested Loop (cost=463.86..5575122.76 rows=652 width=74) (actual time=9.685..67.713 rows=18 loops=1)
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