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81 lines
2 KiB
C
81 lines
2 KiB
C
/*-------------------------------------------------------------------------
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*
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* sequence.h
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* prototypes for sequence.c.
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*
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* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/commands/sequence.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SEQUENCE_H
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#define SEQUENCE_H
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#include "nodes/parsenodes.h"
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#include "storage/relfilenode.h"
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#include "access/xlog.h"
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#include "fmgr.h"
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typedef struct FormData_pg_sequence
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{
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NameData sequence_name;
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int64 last_value;
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int64 start_value;
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int64 increment_by;
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int64 max_value;
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int64 min_value;
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int64 cache_value;
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int64 log_cnt;
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bool is_cycled;
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bool is_called;
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} FormData_pg_sequence;
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typedef FormData_pg_sequence *Form_pg_sequence;
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/*
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* Columns of a sequence relation
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*/
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#define SEQ_COL_NAME 1
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#define SEQ_COL_LASTVAL 2
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#define SEQ_COL_STARTVAL 3
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#define SEQ_COL_INCBY 4
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#define SEQ_COL_MAXVALUE 5
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#define SEQ_COL_MINVALUE 6
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#define SEQ_COL_CACHE 7
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#define SEQ_COL_LOG 8
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#define SEQ_COL_CYCLE 9
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#define SEQ_COL_CALLED 10
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#define SEQ_COL_FIRSTCOL SEQ_COL_NAME
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#define SEQ_COL_LASTCOL SEQ_COL_CALLED
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/* XLOG stuff */
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#define XLOG_SEQ_LOG 0x00
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typedef struct xl_seq_rec
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{
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RelFileNode node;
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/* SEQUENCE TUPLE DATA FOLLOWS AT THE END */
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} xl_seq_rec;
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extern Datum nextval(PG_FUNCTION_ARGS);
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extern Datum nextval_oid(PG_FUNCTION_ARGS);
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extern Datum currval_oid(PG_FUNCTION_ARGS);
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extern Datum setval_oid(PG_FUNCTION_ARGS);
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extern Datum setval3_oid(PG_FUNCTION_ARGS);
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extern Datum lastval(PG_FUNCTION_ARGS);
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extern Datum pg_sequence_parameters(PG_FUNCTION_ARGS);
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extern void DefineSequence(CreateSeqStmt *stmt);
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extern void AlterSequence(AlterSeqStmt *stmt);
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extern void ResetSequence(Oid seq_relid);
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extern void seq_redo(XLogRecPtr lsn, XLogRecord *rptr);
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extern void seq_desc(StringInfo buf, uint8 xl_info, char *rec);
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#endif /* SEQUENCE_H */
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