diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/access/xlog_internal.h | 11 | ||||
| -rw-r--r-- | src/include/access/xlogreader.h | 10 | ||||
| -rw-r--r-- | src/include/catalog/pg_control.h | 2 |
3 files changed, 22 insertions, 1 deletions
diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h index 26a743b6b6c..dcf41e9257c 100644 --- a/src/include/access/xlog_internal.h +++ b/src/include/access/xlog_internal.h @@ -76,8 +76,10 @@ typedef XLogLongPageHeaderData *XLogLongPageHeader; #define XLP_LONG_HEADER 0x0002 /* This flag indicates backup blocks starting in this page are optional */ #define XLP_BKP_REMOVABLE 0x0004 +/* Replaces a missing contrecord; see CreateOverwriteContrecordRecord */ +#define XLP_FIRST_IS_OVERWRITE_CONTRECORD 0x0008 /* All defined flag bits in xlp_info (used for validity checking of header) */ -#define XLP_ALL_FLAGS 0x0007 +#define XLP_ALL_FLAGS 0x000F #define XLogPageHeaderSize(hdr) \ (((hdr)->xlp_info & XLP_LONG_HEADER) ? SizeOfXLogLongPHD : SizeOfXLogShortPHD) @@ -249,6 +251,13 @@ typedef struct xl_restore_point char rp_name[MAXFNAMELEN]; } xl_restore_point; +/* Overwrite of prior contrecord */ +typedef struct xl_overwrite_contrecord +{ + XLogRecPtr overwritten_lsn; + TimestampTz overwrite_time; +} xl_overwrite_contrecord; + /* End of recovery mark, when we don't do an END_OF_RECOVERY checkpoint */ typedef struct xl_end_of_recovery { diff --git a/src/include/access/xlogreader.h b/src/include/access/xlogreader.h index 21d200d3df6..10458c23eda 100644 --- a/src/include/access/xlogreader.h +++ b/src/include/access/xlogreader.h @@ -252,6 +252,16 @@ struct XLogReaderState /* Buffer to hold error message */ char *errormsg_buf; + + /* + * Set at the end of recovery: the start point of a partial record at the + * end of WAL (InvalidXLogRecPtr if there wasn't one), and the start + * location of its first contrecord that went missing. + */ + XLogRecPtr abortedRecPtr; + XLogRecPtr missingContrecPtr; + /* Set when XLP_FIRST_IS_OVERWRITE_CONTRECORD is found */ + XLogRecPtr overwrittenRecPtr; }; /* Get a new XLogReader */ diff --git a/src/include/catalog/pg_control.h b/src/include/catalog/pg_control.h index e3f48158ce7..749bce0cc6f 100644 --- a/src/include/catalog/pg_control.h +++ b/src/include/catalog/pg_control.h @@ -76,6 +76,8 @@ typedef struct CheckPoint #define XLOG_END_OF_RECOVERY 0x90 #define XLOG_FPI_FOR_HINT 0xA0 #define XLOG_FPI 0xB0 +/* 0xC0 is used in Postgres 9.5-11 */ +#define XLOG_OVERWRITE_CONTRECORD 0xD0 /* |