1 files changed, 69 insertions, 0 deletions
diff --git a/src/include/commands/sequence.h b/src/include/commands/sequence.h
new file mode 100644
index 0000000..e2638ab
--- /dev/null
+++ b/src/include/commands/sequence.h
@@ -0,0 +1,69 @@
+/*-------------------------------------------------------------------------
+ *
+ * sequence.h
+ *	  prototypes for sequence.c.
+ *
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/commands/sequence.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef SEQUENCE_H
+#define SEQUENCE_H
+
+#include "access/xlogreader.h"
+#include "catalog/objectaddress.h"
+#include "fmgr.h"
+#include "lib/stringinfo.h"
+#include "nodes/parsenodes.h"
+#include "parser/parse_node.h"
+#include "storage/relfilenode.h"
+
+
+typedef struct FormData_pg_sequence_data
+{
+	int64		last_value;
+	int64		log_cnt;
+	bool		is_called;
+} FormData_pg_sequence_data;
+
+typedef FormData_pg_sequence_data *Form_pg_sequence_data;
+
+/*
+ * Columns of a sequence relation
+ */
+
+#define SEQ_COL_LASTVAL			1
+#define SEQ_COL_LOG				2
+#define SEQ_COL_CALLED			3
+
+#define SEQ_COL_FIRSTCOL		SEQ_COL_LASTVAL
+#define SEQ_COL_LASTCOL			SEQ_COL_CALLED
+
+/* XLOG stuff */
+#define XLOG_SEQ_LOG			0x00
+
+typedef struct xl_seq_rec
+{
+	RelFileNode node;
+	/* SEQUENCE TUPLE DATA FOLLOWS AT THE END */
+} xl_seq_rec;
+
+extern int64 nextval_internal(Oid relid, bool check_permissions);
+extern Datum nextval(PG_FUNCTION_ARGS);
+extern List *sequence_options(Oid relid);
+
+extern ObjectAddress DefineSequence(ParseState *pstate, CreateSeqStmt *stmt);
+extern ObjectAddress AlterSequence(ParseState *pstate, AlterSeqStmt *stmt);
+extern void DeleteSequenceTuple(Oid relid);
+extern void ResetSequence(Oid seq_relid);
+extern void ResetSequenceCaches(void);
+
+extern void seq_redo(XLogReaderState *rptr);
+extern void seq_desc(StringInfo buf, XLogReaderState *rptr);
+extern const char *seq_identify(uint8 info);
+extern void seq_mask(char *pagedata, BlockNumber blkno);
+
+#endif							/* SEQUENCE_H */