On 3/4/22 17:03, Tom Lane wrote:
Mmm ... it might have just been that the planner chose not to use JIT when it thought there were fewer rows involved. Did you check with EXPLAIN that these cut-down cases still used JIT?
This is interesting and informative answer. How do I check whether JIT is used in the explain plan? Can you give me an example?
TIA
-- Mladen Gogala Database Consultant Tel: (347) 321-1217 https://dbwhisperer.wordpress.com
