anytimestamp_typmod_check date2isoweek date2isoyear date2isoyearday DatumGetIntervalP DatumGetTimestamp DatumGetTimestampTz dt2time GetCurrentTimestamp GetEpochTime GetSQLCurrentTimestamp GetSQLLocalTimestamp interval2tm INTERVAL_FULL_PRECISION INTERVAL_FULL_RANGE INTERVAL_MASK INTERVAL_PRECISION INTERVAL_PRECISION_MASK INTERVAL_RANGE INTERVAL_RANGE_MASK INTERVAL_TYPMOD IntervalPGetDatum isoweek2date isoweek2j isoweekdate2date PG_GETARG_INTERVAL_P PG_GETARG_TIMESTAMP PG_GETARG_TIMESTAMPTZ PG_RETURN_INTERVAL_P PG_RETURN_TIMESTAMP PG_RETURN_TIMESTAMPTZ PgReloadTime PgStartTime SetEpochTimestamp time_t_to_timestamptz timestamp2timestamptz_opt_overflow timestamp2tm timestamp_cmp_internal timestamp_cmp_timestamptz_internal TIMESTAMP_MASK TimestampDifference TimestampDifferenceExceeds TimestampDifferenceMilliseconds TimestampGetDatum TimestampTimestampTzRequiresRewrite timestamptz_cmp_internal timestamptz_to_str timestamptz_to_time_t TimestampTzGetDatum TimestampTzPlusMilliseconds tm2interval tm2timestamp

INTERVAL_TYPMOD #define INTERVAL_TYPMOD (   p,   r  )    ((((r) & INTERVAL_RANGE_MASK) << 16) | ((p) & INTERVAL_PRECISION_MASK))