diff options
Diffstat (limited to 'src/include/access/xlogreader.h')
| -rw-r--r-- | src/include/access/xlogreader.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/include/access/xlogreader.h b/src/include/access/xlogreader.h index deaa7f5128b..300747dbf76 100644 --- a/src/include/access/xlogreader.h +++ b/src/include/access/xlogreader.h @@ -27,6 +27,10 @@ #include "access/xlogrecord.h" +#ifndef FRONTEND +#include "nodes/pg_list.h" +#endif + typedef struct XLogReaderState XLogReaderState; /* Function type definition for the read_page callback */ @@ -160,11 +164,25 @@ struct XLogReaderState /* beginning of the WAL record being read. */ XLogRecPtr currRecPtr; + /* timeline to read it from, 0 if a lookup is required */ + TimeLineID currTLI; + /* + * Safe point to read to in currTLI. If currTLI is historical, then this + * is set to the end of the last whole segment that contains that TLI; + * if currTLI is ThisTimeLineID, this is InvalidXLogRecPtr. This is *not* + * the tliSwitchPoint. + */ + XLogRecPtr currTLIValidUntil; /* Buffer for current ReadRecord result (expandable) */ char *readRecordBuf; uint32 readRecordBufSize; +#ifndef FRONTEND + /* cached timeline history, only available in backend */ + List *timelineHistory; +#endif + /* Buffer to hold error message */ char *errormsg_buf; }; |