Header And Logo
|
00001 /*------------------------------------------------------------------------- 00002 * 00003 * sequence.h 00004 * prototypes for sequence.c. 00005 * 00006 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group 00007 * Portions Copyright (c) 1994, Regents of the University of California 00008 * 00009 * src/include/commands/sequence.h 00010 * 00011 *------------------------------------------------------------------------- 00012 */ 00013 #ifndef SEQUENCE_H 00014 #define SEQUENCE_H 00015 00016 #include "access/xlog.h" 00017 #include "fmgr.h" 00018 #include "nodes/parsenodes.h" 00019 #include "storage/relfilenode.h" 00020 00021 00022 typedef struct FormData_pg_sequence 00023 { 00024 NameData sequence_name; 00025 int64 last_value; 00026 int64 start_value; 00027 int64 increment_by; 00028 int64 max_value; 00029 int64 min_value; 00030 int64 cache_value; 00031 int64 log_cnt; 00032 bool is_cycled; 00033 bool is_called; 00034 } FormData_pg_sequence; 00035 00036 typedef FormData_pg_sequence *Form_pg_sequence; 00037 00038 /* 00039 * Columns of a sequence relation 00040 */ 00041 00042 #define SEQ_COL_NAME 1 00043 #define SEQ_COL_LASTVAL 2 00044 #define SEQ_COL_STARTVAL 3 00045 #define SEQ_COL_INCBY 4 00046 #define SEQ_COL_MAXVALUE 5 00047 #define SEQ_COL_MINVALUE 6 00048 #define SEQ_COL_CACHE 7 00049 #define SEQ_COL_LOG 8 00050 #define SEQ_COL_CYCLE 9 00051 #define SEQ_COL_CALLED 10 00052 00053 #define SEQ_COL_FIRSTCOL SEQ_COL_NAME 00054 #define SEQ_COL_LASTCOL SEQ_COL_CALLED 00055 00056 /* XLOG stuff */ 00057 #define XLOG_SEQ_LOG 0x00 00058 00059 typedef struct xl_seq_rec 00060 { 00061 RelFileNode node; 00062 /* SEQUENCE TUPLE DATA FOLLOWS AT THE END */ 00063 } xl_seq_rec; 00064 00065 extern Datum nextval(PG_FUNCTION_ARGS); 00066 extern Datum nextval_oid(PG_FUNCTION_ARGS); 00067 extern Datum currval_oid(PG_FUNCTION_ARGS); 00068 extern Datum setval_oid(PG_FUNCTION_ARGS); 00069 extern Datum setval3_oid(PG_FUNCTION_ARGS); 00070 extern Datum lastval(PG_FUNCTION_ARGS); 00071 00072 extern Datum pg_sequence_parameters(PG_FUNCTION_ARGS); 00073 00074 extern Oid DefineSequence(CreateSeqStmt *stmt); 00075 extern Oid AlterSequence(AlterSeqStmt *stmt); 00076 extern void ResetSequence(Oid seq_relid); 00077 00078 extern void seq_redo(XLogRecPtr lsn, XLogRecord *rptr); 00079 extern void seq_desc(StringInfo buf, uint8 xl_info, char *rec); 00080 00081 #endif /* SEQUENCE_H */
1.7.1