Improve support for ExplainOneQuery() hook There is a hook called ExplainOneQuery_hook that gives modules the possibility to plug into this code path, but, like utility.c for utility statement execution, there is no corresponding "standard" routine in the case of EXPLAIN executed for one Query.
This commit adds a new standard_ExplainOneQuery() in explain.c, which is able to run explain on a non-utility Query without calling its hook. Per the feedback received from a couple of hackers, this change gives the possibility to cut a few hundred lines of code in some of the popular out-of-core modules as these maintained a copy of ExplainOneQuery(), adding custom extra information at the beginning or the end of the EXPLAIN output. Author: Mats Kindahl Reviewed-by: Aleksander Alekseev, Jelte Fennema-Nio, Andrei Lepikhov Discussion: https://postgr.es/m/ca+14427v_b4eaoc_o-iyyucrdmsotfpuh9k-qbexffy1hyj...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/a04ddd077e61096da660e1c2f205e0c8277f2dcd Modified Files -------------- src/backend/commands/explain.c | 106 +++++++++++++++++++++++------------------ src/include/commands/explain.h | 4 ++ 2 files changed, 63 insertions(+), 47 deletions(-)
