Document that PQexec() can handle a NULL res pointer just fine.
Backpatch to 9.1.
Mark Hills
Branch------master
Details-------http://git.postgresql.org/pg/commitdiff/d5873b635989e0b780c1c9f07139dfebf0f5e546
Modified Files--------------doc/src/sgml/libpq.sgml | 8 +++++---1 files changed, 5 insertions(+), 3 deletions(-)
