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Simplify handling of the timezone GUC by making initdb choose the default.

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We were doing some amazingly complicated things in order to avoid running
the very expensive identify_system_timezone() procedure during GUC
initialization.  But there is an obvious fix for that, which is to do it
once during initdb and have initdb install the system-specific default into
postgresql.conf, as it already does for most other GUC variables that need
system-environment-dependent defaults.  This means that the timezone (and
log_timezone) settings no longer have any magic behavior in the server.
Per discussion.
This commit is contained in:
Tom Lane
2011-09-09 17:59:11 -04:00
parent a7801b62f2
commit ca4af308c3
19 changed files with 1373 additions and 1368 deletions
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4
src/backend/utils/misc/postgresql.conf.sample
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@ -406,7 +406,7 @@
#log_temp_files = -1 # log temporary files equal or larger
# than the specified size in kilobytes;
# -1 disables, 0 logs all temp files
#log_timezone = '(defaults to server environment setting)'
#log_timezone = 'GMT'
#------------------------------------------------------------------------------
@ -486,7 +486,7 @@
#datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
#timezone = '(defaults to server environment setting)'
#timezone = 'GMT'
#timezone_abbreviations = 'Default' # Select the set of available time zone
# abbreviations. Currently, there are
# Default