Tom Lane 1a3daa5bb2 Add some recursion and looping defenses in prepjointree.c. ...

Andrey Lepikhov demonstrated a case where we spend an unreasonable
amount of time in pull_up_subqueries().  Not only is that recursing
with no explicit check for stack overrun, but the code seems not
interruptable by control-C.  Let's stick a CHECK_FOR_INTERRUPTS
there, along with sprinkling some stack depth checks.

An actual fix for the excessive time consumption seems a bit
risky to back-patch; but this isn't, so let's do so.

Discussion: https://postgr.es/m/703c09a2-08f3-d2ec-b33d-dbecd62428b8@postgrespro.ru

2022-12-22 10:35:02 -05:00

..

Makefile

Move per-agg and per-trans duplicate finding to the planner.

2020-11-24 10:45:00 +02:00

prepagg.c

Update copyright for 2022

2022-01-07 19:04:57 -05:00

prepjointree.c

Add some recursion and looping defenses in prepjointree.c.

2022-12-22 10:35:02 -05:00

prepqual.c

Update copyright for 2022

2022-01-07 19:04:57 -05:00

preptlist.c

Change mechanism to set up source targetlist in MERGE

2022-04-12 09:29:39 +02:00

prepunion.c

Update copyright for 2022

2022-01-07 19:04:57 -05:00