Hi, I have faced an incident which, according to the developer, "The problem seems to be that pgsql switches from a CONST sub-expression into a FUNCEXPR after a few goes, ..." Please have a look at the following two links which describe the problem: https://github.com/nahanni/rw_redis_fdw/issues/13 https://github.com/nahanni/rw_redis_fdw/issues/14 The first link (13) has to do with PG10.x version. The second one (14) has to do with PG11 version in which the developer traces the "problem". Please check and comment. Tia
