| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Back-patch addition of stack overflow and interrupt checks for l |
| Date: | 2020-03-31 15:38:22 |
| Message-ID: | E1jJIy6-000263-JN@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Back-patch addition of stack overflow and interrupt checks for lquery.
Experimentation shows that it's not hard at all to drive the
old implementation of "ltree ~ lquery" match to stack overflow,
so throw in a check_stack_depth() call, as I just did in HEAD.
I wasn't able to make it take a long time, because all the
pathological cases I tried hit stack overflow first; but
I bet there are some others that do take a long time, so add
CHECK_FOR_INTERRUPTS() too.
Discussion: https://postgr.es/m/CAP_rww=waX2Oo6q+MbMSiZ9ktdj6eaJj0cQzNu=Ry2cCDij5fw@mail.gmail.com
Branch
------
REL_12_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/94c9152dc880a8b1d1223c885d6d56d33e417b57
Modified Files
--------------
contrib/ltree/lquery_op.c | 7 +++++++
1 file changed, 7 insertions(+)
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