70 lines
1.8 KiB
C
70 lines
1.8 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) 1996-2021, 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 "access/xlogreader.h"
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#include "catalog/objectaddress.h"
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#include "fmgr.h"
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#include "lib/stringinfo.h"
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#include "nodes/parsenodes.h"
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#include "parser/parse_node.h"
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#include "storage/relfilenode.h"
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typedef struct FormData_pg_sequence_data
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{
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int64 last_value;
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int64 log_cnt;
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bool is_called;
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} FormData_pg_sequence_data;
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typedef FormData_pg_sequence_data *Form_pg_sequence_data;
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/*
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* Columns of a sequence relation
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*/
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#define SEQ_COL_LASTVAL 1
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#define SEQ_COL_LOG 2
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#define SEQ_COL_CALLED 3
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#define SEQ_COL_FIRSTCOL SEQ_COL_LASTVAL
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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 int64 nextval_internal(Oid relid, bool check_permissions);
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extern Datum nextval(PG_FUNCTION_ARGS);
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extern List *sequence_options(Oid relid);
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extern ObjectAddress DefineSequence(ParseState *pstate, CreateSeqStmt *stmt);
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extern ObjectAddress AlterSequence(ParseState *pstate, AlterSeqStmt *stmt);
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extern void DeleteSequenceTuple(Oid relid);
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extern void ResetSequence(Oid seq_relid);
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extern void ResetSequenceCaches(void);
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extern void seq_redo(XLogReaderState *rptr);
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extern void seq_desc(StringInfo buf, XLogReaderState *rptr);
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extern const char *seq_identify(uint8 info);
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extern void seq_mask(char *pagedata, BlockNumber blkno);
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#endif /* SEQUENCE_H */
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