pgsql: Check for stack overflow when rewriting graph queries - Mailing list pgsql-committers

From Peter Eisentraut
Subject pgsql: Check for stack overflow when rewriting graph queries
Date
Msg-id E1wG9wg-002SvR-1E@gemulon.postgresql.org
Whole thread
List pgsql-committers
Check for stack overflow when rewriting graph queries

generate_queries_for_path_pattern_recurse() and
generate_setop_from_pathqueries() are recursive functions.  For a
property graph with hundreds of tables, a graph pattern with a handful
element patterns can cause stack overflow.  Fix it by calling
check_stack_depth() at the beginning of these functions.

Author: Satyanarayana Narlapuram <satyanarlapuram@gmail.com>
Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Discussion: https://www.postgresql.org/message-id/CAHg+QDfgK0xddH8f3eAb+UVn7sBDOnv8RvM6OkP4HtHAt6aD7w@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/2ff289d03939498a656a0c6cf2da08623f8357b4

Modified Files
--------------
src/backend/rewrite/rewriteGraphTable.c | 7 +++++++
1 file changed, 7 insertions(+)


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