doc: improve description of synchronous_commit modes
authorBruce Momjian
Thu, 15 Oct 2020 19:15:29 +0000 (15:15 -0400)
committerBruce Momjian
Thu, 15 Oct 2020 19:15:29 +0000 (15:15 -0400)
commitf915453c5a38c3dcd5f87efec630801adc3c93a9
tree3d5c6a183282529224bfdd9cc7487d22551a56f6
parent8b53dbada4a6a9e5f16548ca2c4d17cff55933d8
doc:  improve description of synchronous_commit modes

Previously it wasn't clear exactly what each of the synchronous_commit
modes accomplished.  This clarifies that, and adds a table describing it.
Only backpatched through 9.6 since 9.5 doesn't have all the options.

Reported-by: [email protected]
Discussion: https://postgr.es/m/159741195522.14321.13812604195366728976@wrigleys.postgresql.org

Backpatch-through: 9.6
doc/src/sgml/config.sgml
src/include/access/xact.h