libpq: Reset singlerow flag correctly in pipeline mode
When a query whose results were requested in single-row mode is the last
in the queue by the time those results are being read, the single-row
flag was not being reset, because we were returning early from
pqPipelineProcessQueue. Move that stanza up so that the flag is always
reset at the end of sending that query's results.
Add a test for the situation.
Backpatch to 14.
Author: Denis Laxalde <denis.laxalde@dalibo.com>
Discussion: https://postgr.es/m/01af18c5-dacc-a8c8-07ee-aecc7650c3e8@dalibo.com
Branch
------
REL_14_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/b8af4166ff96af9c7bed1b511d0356284a8b7766
Modified Files
--------------
src/interfaces/libpq/fe-exec.c | 12 +++---
src/test/modules/libpq_pipeline/libpq_pipeline.c | 45 +++++++++++++++++++++-
.../modules/libpq_pipeline/traces/singlerow.trace | 20 ++++++++++
3 files changed, 70 insertions(+), 7 deletions(-)
