Thomas Munro f900a79ecd Default to wal_sync_method=fdatasync on FreeBSD. ... FreeBSD 13 gained O_DSYNC, which would normally cause wal_sync_method to choose open_datasync as its default value. That may not be a good choice for all systems, and performs worse than fdatasync in some scenarios. Let's preserve the existing default behavior for now. Like commit 576477e73c, which did the same for Linux, back-patch to all supported releases. Discussion: https://postgr.es/m/CA%2BhUKGLsAMXBQrCxCXoW-JsUYmdOL8ALYvaX%3DCrHqWxm-nWbGA%40mail.gmail.com		2021-02-15 16:04:59 +13:00
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src	Default to wal_sync_method=fdatasync on FreeBSD.	2021-02-15 16:04:59 +13:00
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