private boolean valueExpression_sempred(ValueExpressionContext _localctx, int predIndex) {
		switch (predIndex) {
		case 8:
			return precpred(_ctx, 6);
		case 9:
			return precpred(_ctx, 5);
		case 10:
			return precpred(_ctx, 4);
		case 11:
			return precpred(_ctx, 3);
		case 12:
			return precpred(_ctx, 2);
		case 13:
			return precpred(_ctx, 1);
		}
		return true;
	}
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