Don't call PG_RETURN_BOOL() in a function not returning Datum.
This code is new in v12, and the defect probably was not user-visible.
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/9a81c9fa3f6a2f57b9db2a1ce5584c85fc1d977e
Modified Files
--------------
src/backend/utils/adt/timestamp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)