doc: Replace some uses of "which" by "that" in parallel.sgml
This makes the documentation more accurate grammatically.
Author: Elena Indrupskaya
Discussion: https://postgr.es/m/1c994b3d-951e-59bb-1ac2-7b9221c0e4cf@postgrespro.ru
Backpatch-through: 9.6
Branch
------
REL_13_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/e976cc4a79af63b3f1453a8e2d9eb9bcdeb91616
Modified Files
--------------
doc/src/sgml/parallel.sgml | 52 +++++++++++++++++++++++-----------------------
1 file changed, 26 insertions(+), 26 deletions(-)