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XLOG stuff for sequences.

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CommitDelay in guc.c
This commit is contained in:
Vadim B. Mikheev
2000-11-30 01:47:33 +00:00
parent 680b7357ce
commit 741510521c
10 changed files with 241 additions and 67 deletions
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35
src/include/commands/sequence.h
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@@ -10,6 +10,22 @@
#define SEQUENCE_H
#include "nodes/parsenodes.h"
#include "access/xlog.h"
typedef struct FormData_pg_sequence
{
NameData sequence_name;
int4 last_value;
int4 increment_by;
int4 max_value;
int4 min_value;
int4 cache_value;
int4 log_cnt;
char is_cycled;
char is_called;
} FormData_pg_sequence;
typedef FormData_pg_sequence *Form_pg_sequence;
/*
* Columns of a sequence relation
@@ -21,12 +37,23 @@
#define SEQ_COL_MAXVALUE 4
#define SEQ_COL_MINVALUE 5
#define SEQ_COL_CACHE 6
#define SEQ_COL_CYCLE 7
#define SEQ_COL_CALLED 8
#define SEQ_COL_LOG 7
#define SEQ_COL_CYCLE 8
#define SEQ_COL_CALLED 9
#define SEQ_COL_FIRSTCOL SEQ_COL_NAME
#define SEQ_COL_LASTCOL SEQ_COL_CALLED
/* XLOG stuff */
#define XLOG_SEQ_LOG 0x00
#define XLOG_SEQ_SET 0x10
typedef struct xl_seq_rec
{
RelFileNode node;
int4 value; /* last logged value */
} xl_seq_rec;
extern Datum nextval(PG_FUNCTION_ARGS);
extern Datum currval(PG_FUNCTION_ARGS);
extern Datum setval(PG_FUNCTION_ARGS);
@@ -35,4 +62,8 @@ extern Datum setval_and_iscalled(PG_FUNCTION_ARGS);
extern void DefineSequence(CreateSeqStmt *stmt);
extern void CloseSequences(void);
extern void seq_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void seq_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void seq_desc(char *buf, uint8 xl_info, char* rec);
#endif /* SEQUENCE_H */