sequence_xlog.h

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/*-------------------------------------------------------------------------
 *
 * sequence_xlog.h
 *    Sequence WAL definitions.
 *
 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/commands/sequence_xlog.h
 *
 *-------------------------------------------------------------------------
 */
 
#ifndef SEQUENCE_XLOG_H
#define SEQUENCE_XLOG_H
 
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
 
/* Record identifier */
#define XLOG_SEQ_LOG            0x00
 
/*
 * The "special area" of a sequence's buffer page looks like this.
 */
#define SEQ_MAGIC       0x1717
 
typedef struct sequence_magic
{
    uint32      magic;
} sequence_magic;
 
/* Sequence WAL record */
typedef struct xl_seq_rec
{
    RelFileLocator locator;
    /* SEQUENCE TUPLE DATA FOLLOWS AT THE END */
} xl_seq_rec;
 
extern void seq_redo(XLogReaderState *record);
extern void seq_desc(StringInfo buf, XLogReaderState *record);
extern const char *seq_identify(uint8 info);
extern void seq_mask(char *page, BlockNumber blkno);
 
#endif                          /* SEQUENCE_XLOG_H */