Thread: pgsql: Allow executor nodes to change their ExecProcNode function.
Allow executor nodes to change their ExecProcNode function. In order for executor nodes to be able to change their ExecProcNode function after ExecInitNode() has finished, provide ExecSetExecProcNode(). This allows any wrappers functions that only execProcnode.c knows about to be reinstalled. The motivation for wanting to change ExecProcNode after ExecInitNode() has finished is that it is not known until later whether parallel query is available, so if a parallel variant is to be installed then ExecInitNode() is too soon to decide. Author: Thomas Munro Reviewed-By: Andres Freund Discussion: https://postgr.es/m/CAEepm=09rr65VN+cAV5FgyM_z=D77Xy8Fuc9CDDDYbq3pQUezg@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/538d114f6d72cbc94122ab522e002e63359cff5b Modified Files -------------- src/backend/executor/execProcnode.c | 28 ++++++++++++++++++++++------ src/include/executor/executor.h | 1 + 2 files changed, 23 insertions(+), 6 deletions(-)