The following bug has been logged on the website:
Bug reference: 15627
Logged by: ice ice
Email address: icegood1980@gmail.com
PostgreSQL version: 11.1
Operating system: Ubuntu 18.04.1 LTS
Description:
PQisBusy has memory leak with next valgrind stack:
1: malloc in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so
2: PQmakeEmptyPGresult in
/opt/src/postgres/src/interfaces/libpq/fe-exec.c:146
3: getRowDescriptions in
/opt/src/postgres/src/interfaces/libpq/fe-protocol3.c:492
4: pqParseInput3 in
/opt/src/postgres/src/interfaces/libpq/fe-protocol3.c:293
5: parseInput in /opt/src/postgres/src/interfaces/libpq/fe-exec.c:1747
6: PQisBusy in /opt/src/postgres/src/interfaces/libpq/fe-exec.c:1764
The problem is that if PQisBusy doesn't revoke memory for item
/* Status for asynchronous result construction */
PGresult *result; /* result being constructed */
in struct pg_conn