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Implement archive_timeout feature to force xlog file switches to occur no more
than N seconds apart. This allows a simple, if not very high performance, means of guaranteeing that a PITR archive is no more than N seconds behind real time. Also make pg_current_xlog_location return the WAL Write pointer, add pg_current_xlog_insert_location to return the Insert pointer, and fix pg_xlogfile_name_offset to return its results as a two-element record instead of a smashed-together string, as per recent discussion. Simon Riggs
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- doc/src/sgml/backup.sgml 25 additions, 32 deletionsdoc/src/sgml/backup.sgml
- doc/src/sgml/config.sgml 30 additions, 1 deletiondoc/src/sgml/config.sgml
- doc/src/sgml/func.sgml 28 additions, 10 deletionsdoc/src/sgml/func.sgml
- src/backend/access/transam/xlog.c 107 additions, 14 deletionssrc/backend/access/transam/xlog.c
- src/backend/postmaster/bgwriter.c 54 additions, 5 deletionssrc/backend/postmaster/bgwriter.c
- src/backend/utils/misc/guc.c 12 additions, 2 deletionssrc/backend/utils/misc/guc.c
- src/backend/utils/misc/postgresql.conf.sample 3 additions, 2 deletionssrc/backend/utils/misc/postgresql.conf.sample
- src/include/access/xlog.h 2 additions, 1 deletionsrc/include/access/xlog.h
- src/include/access/xlog_internal.h 10 additions, 1 deletionsrc/include/access/xlog_internal.h
- src/include/catalog/catversion.h 2 additions, 2 deletionssrc/include/catalog/catversion.h
- src/include/catalog/pg_proc.h 5 additions, 3 deletionssrc/include/catalog/pg_proc.h
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