Report post #8 in Everything slow after pg_upgrade from 16 to 17
Top of it is: JIT: Functions: 42 Options: Inlining true, Optimization true, Expressions true, Deforming true Timing: Generation 8.1 ms, Inlining 310.2 ms, Optimization 612.4 ms, Emission 201.9 ms, Total 1132.6 ms Execution Time: 2041.8 ms