public final IntervalContext interval() throws RecognitionException {
		IntervalContext _localctx = new IntervalContext(_ctx, getState());
		enterRule(_localctx, 160, RULE_interval);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(1618);
			match(INTERVAL);
			setState(1621);
			_errHandler.sync(this);
			switch ( getInterpreter().adaptivePredict(_input,218,_ctx) ) {
			case 1:
				{
				setState(1619);
				errorCapturingMultiUnitsInterval();
				}
				break;
			case 2:
				{
				setState(1620);
				errorCapturingUnitToUnitInterval();
				}
				break;
			}
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}
When true, the behavior of keywords follows ANSI SQL standard.
amoro-format-mixed/amoro-mixed-spark/v3.5/amoro-mixed-spark-3.5/src/main/gen-antlr/org/apache/amoro/spark/sql/parser/MixedFormatSqlExtendParser.java