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Change Win32 O_SYNC method to O_DSYNC because that is what the method

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currently does.  This is now the default Win32 wal sync method because
we perfer o_datasync to fsync.

Also, change Win32 fsync to a new wal sync method called
fsync_writethrough because that is the behavior of _commit, which is
what is used for fsync on Win32.

Backpatch to 8.0.X.
This commit is contained in:
Bruce Momjian
2005-03-24 04:36:20 +00:00
parent 0275b3f783
commit b1f57d88f5
5 changed files with 26 additions and 9 deletions
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3
src/backend/utils/misc/postgresql.conf.sample
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@ -114,7 +114,8 @@
#fsync = true # turns forced synchronization on or off
#wal_sync_method = fsync # the default varies across platforms:
# fsync, fdatasync, open_sync, or open_datasync
# fsync, fdatasync, fsync_writethrough,
# open_sync, open_datasync
#wal_buffers = 8 # min 4, 8KB each
#commit_delay = 0 # range 0-100000, in microseconds
#commit_siblings = 5 # range 1-1000