[#15159] test: avoid ASAN stack overflow

Summary:
The yb_pg_errors regress test covered by Java test TestPgRegressPgMisc runs a
query to test infinite recursion.  It is supposed to catch it, but before that,
ASAN catches it and throws fatal error.  This was not the case with clang13,
but it is the case with clang15.  Temporarily reduce max_stack_depth at that
time so that postgres catches the issue before ASAN.

Close: #15159

Test Plan:
Jenkins: test regex: .*TestPgRegressPgMisc.*

./yb_build.sh asan --clang15 --java-test TestPgRegressPgMisc

Reviewers: myang

Reviewed By: myang

Subscribers: yql

Differential Revision: https://phabricator.dev.yugabyte.com/D22716

src/postgres/src/test/regress/expected/yb_pg_errors.out

@@ -450,13 +450,19 @@ NULL);
 ERROR:  syntax error at or near "NUL"
 LINE 16: ...L, id2 TEXT NOT NULL PRIMARY KEY, id3 INTEGER NOT NUL, id4 I...
                                                               ^
+-- YB: With default max_stack_depth, ASAN build detects stack-overflow first.
+-- Prevent that by lowering max_stack_depth temporarily.
+set max_stack_depth = '900kB';
 -- Check that stack depth detection mechanism works and
 -- max_stack_depth is not set too high
 create function infinite_recurse() returns int as
 'select infinite_recurse()' language sql;
 \set VERBOSITY terse
 select infinite_recurse();
 ERROR:  stack depth limit exceeded
+-- YB: undo above change.  Some experimentation showed issues with some later
+-- statements otherwise.
+reset max_stack_depth;
 -- YB note: check for unsupported system columns.
 CREATE TABLE test_tab1(id INT);
 INSERT INTO test_tab1 VALUES (1) RETURNING ctid;

src/postgres/src/test/regress/sql/yb_pg_errors.sql

@@ -374,13 +374,21 @@ UNIQUE
 NOT
 NULL);
 
+-- YB: With default max_stack_depth, ASAN build detects stack-overflow first.
+-- Prevent that by lowering max_stack_depth temporarily.
+set max_stack_depth = '900kB';
+
 -- Check that stack depth detection mechanism works and
 -- max_stack_depth is not set too high
 create function infinite_recurse() returns int as
 'select infinite_recurse()' language sql;
 \set VERBOSITY terse
 select infinite_recurse();
 
+-- YB: undo above change.  Some experimentation showed issues with some later
+-- statements otherwise.
+reset max_stack_depth;
+
 -- YB note: check for unsupported system columns.
 CREATE TABLE test_tab1(id INT);
 INSERT INTO test_tab1 VALUES (1) RETURNING ctid;