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Allow pg_basebackup from standby node with safety checking.

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Base backup follows recommended procedure, plus goes to great
lengths to ensure that partial page writes are avoided.

Jun Ishizuka and Fujii Masao, with minor modifications
This commit is contained in:
Simon Riggs
2012-01-25 18:02:04 +00:00
parent 74ab96a45e
commit 8366c7803e
11 changed files with 501 additions and 44 deletions
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src/include/access/xlog.h
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@ -192,6 +192,7 @@ extern int XLogArchiveTimeout;
extern bool XLogArchiveMode;
extern char *XLogArchiveCommand;
extern bool EnableHotStandby;
extern bool fullPageWrites;
extern bool log_checkpoints;
/* WAL levels */
@ -307,6 +308,7 @@ extern void CreateCheckPoint(int flags);
extern bool CreateRestartPoint(int flags);
extern void XLogPutNextOid(Oid nextOid);
extern XLogRecPtr XLogRestorePoint(const char *rpName);
extern void UpdateFullPageWrites(void);
extern XLogRecPtr GetRedoRecPtr(void);
extern XLogRecPtr GetInsertRecPtr(void);
extern XLogRecPtr GetFlushRecPtr(void);