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docs: log_line_prefix session id fix

Restore 4-byte designation for docs.  Fix 9.3 doc query to properly pad
to four digits.

Backpatch to all active branches

Per suggestions from Ian Lawrence Barwick
This commit is contained in:
Bruce Momjian
2013-05-04 13:15:54 -04:00
parent db5fa1dc9b
commit f9b604e55d

View File

@ -3568,7 +3568,7 @@ local0.* /var/log/postgresql
</informaltable>
The <literal>%c</> escape prints a quasi-unique session identifier,
consisting of two hexadecimal numbers (without leading zeros)
consisting of two 4-byte hexadecimal numbers (without leading zeros)
separated by a dot. The numbers are the process start time and the
process ID, so <literal>%c</> can also be used as a space saving way
of printing those items. For example, to generate the session