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/*------------------------------------------------------------------------- * * pg_lsn.h * Declarations for operations on log sequence numbers (LSNs) of * PostgreSQL. * * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/utils/pg_lsn.h * *------------------------------------------------------------------------- */ #ifndef PG_LSN_H #define PG_LSN_H #include "fmgr.h" #include "access/xlogdefs.h" extern Datum pg_lsn_in(PG_FUNCTION_ARGS); extern Datum pg_lsn_out(PG_FUNCTION_ARGS); extern Datum pg_lsn_recv(PG_FUNCTION_ARGS); extern Datum pg_lsn_send(PG_FUNCTION_ARGS); extern Datum pg_lsn_eq(PG_FUNCTION_ARGS); extern Datum pg_lsn_ne(PG_FUNCTION_ARGS); extern Datum pg_lsn_lt(PG_FUNCTION_ARGS); extern Datum pg_lsn_gt(PG_FUNCTION_ARGS); extern Datum pg_lsn_le(PG_FUNCTION_ARGS); extern Datum pg_lsn_ge(PG_FUNCTION_ARGS); extern Datum pg_lsn_cmp(PG_FUNCTION_ARGS); extern Datum pg_lsn_hash(PG_FUNCTION_ARGS); extern Datum pg_lsn_mi(PG_FUNCTION_ARGS); #define DatumGetLSN(X) ((XLogRecPtr) DatumGetInt64(X)) #define LSNGetDatum(X) (Int64GetDatum((int64) (X))) #define PG_GETARG_LSN(n) DatumGetLSN(PG_GETARG_DATUM(n)) #define PG_RETURN_LSN(x) return LSNGetDatum(x) #endif /* PG_LSN_H */