psql: Improve portability of query cancel test
authorPeter Eisentraut <peter@eisentraut.org>
Sun, 22 Aug 2021 16:41:31 +0000 (18:41 +0200)
committerPeter Eisentraut <peter@eisentraut.org>
Sun, 22 Aug 2021 16:51:38 +0000 (18:51 +0200)
commitc818c25f448d0085e1bb2be402463a4b28bc20c4
treeae0163e4f67932ac9e608be201519b80eb982ab0
parent945f395aeb74cea77d5239db01357bbcbea80534
psql: Improve portability of query cancel test

Some shells apparently don't support $PPID, so skip the test in that
case.
src/bin/psql/t/020_cancel.pl