diff options
Diffstat (limited to 'src/include/access/heapam_xlog.h')
| -rw-r--r-- | src/include/access/heapam_xlog.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/include/access/heapam_xlog.h b/src/include/access/heapam_xlog.h index 700e25c36a1..0052e4c569a 100644 --- a/src/include/access/heapam_xlog.h +++ b/src/include/access/heapam_xlog.h @@ -32,7 +32,7 @@ #define XLOG_HEAP_INSERT 0x00 #define XLOG_HEAP_DELETE 0x10 #define XLOG_HEAP_UPDATE 0x20 -/* 0x030 is free, was XLOG_HEAP_MOVE */ +#define XLOG_HEAP_TRUNCATE 0x30 #define XLOG_HEAP_HOT_UPDATE 0x40 #define XLOG_HEAP_CONFIRM 0x50 #define XLOG_HEAP_LOCK 0x60 @@ -110,6 +110,27 @@ typedef struct xl_heap_delete #define SizeOfHeapDelete (offsetof(xl_heap_delete, flags) + sizeof(uint8)) /* + * xl_heap_delete flag values, 8 bits are available. + */ +#define XLH_TRUNCATE_CASCADE (1<<0) +#define XLH_TRUNCATE_RESTART_SEQS (1<<1) + +/* + * For truncate we list all truncated relids in an array, followed by all + * sequence relids that need to be restarted, if any. + * All rels are always within the same database, so we just list dbid once. + */ +typedef struct xl_heap_truncate +{ + Oid dbId; + uint32 nrelids; + uint8 flags; + Oid relids[FLEXIBLE_ARRAY_MEMBER]; +} xl_heap_truncate; + +#define SizeOfHeapTruncate (offsetof(xl_heap_truncate, relids)) + +/* * We don't store the whole fixed part (HeapTupleHeaderData) of an inserted * or updated tuple in WAL; we can save a few bytes by reconstructing the * fields that are available elsewhere in the WAL record, or perhaps just |