Fix pgbench in prepared mode with an empty pipeline
It crashes because it references memory that's not allocated in that
particular case. Fix by allocating it.
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/bcf802a6-afc1-95b9-7bf4-c5dd868ec144@gmail.com
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/34f51196573ca19d83707d30b218c65b46f42d77
Modified Files
--------------
src/bin/pgbench/pgbench.c | 44 ++++++++++++++++------------
src/bin/pgbench/t/001_pgbench_with_server.pl | 2 ++
2 files changed, 28 insertions(+), 18 deletions(-)