Document "B" and "us" as accepted units in postgres.conf.sample

In postgresql.conf, memory and file size GUCs can be specified with "B"
(bytes) as of b06d8e58b. Likewise, time GUCs can be specified with "us"
(microseconds) as of caf626b2c. Update postgres.conf.sample to reflect
that fact.

Pavel Luzanov

Backpatch to v12, which is the earliest version that allows both of
these units. A separate commit will document the "B" case for v11.

Discussion: https://www.postgresql.org/message-id/flat/f10d16fc-8fa0-1b3c-7371-cb3a35a13b7a%40postgrespro.ru

diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 2663bccfda006b1a5c83a7e87c66645518179e19..110d9bae939b6cd474263cb8e1eb93730c03de9c 100644 (file)
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -24,7 +24,8 @@
 # "postgres -c log_connections=on".  Some parameters can be changed at run time
 # with the "SET" SQL command.
 #
-# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
+# Memory units:  B  = bytes            Time units:  us  = microseconds
+#                kB = kilobytes                     ms  = milliseconds
 #                MB = megabytes                     s   = seconds
 #                GB = gigabytes                     min = minutes
 #                TB = terabytes                     h   = hours