Improve comment of DeallocateStmt->isall
This field is not used directly in the code, but it is important for
query jumbling to be able to make a difference between a named
DEALLOCATE and DEALLOCATE ALL (see bb45156f342c). This behavior is
tracked in the regression tests of pg_stat_statements, but the reason
why this field is important can be easily missed, as a recent discussion
has proved, so let's improve its comment to document the reason why it
needs to be around.
Wording has been suggested by Tom Lane
Discussion: https://postgr.es/m/Zih1ATt37YFda8_p@paquier.xyz
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/ee3ef4af19d8ba140a8b33c6598d470d36eec10c
Modified Files
--------------
src/include/nodes/parsenodes.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)