public final NamedExpressionContext namedExpression() throws RecognitionException {
		NamedExpressionContext _localctx = new NamedExpressionContext(_ctx, getState());
		enterRule(_localctx, 128, RULE_namedExpression);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(1161);
			expression();
			setState(1169);
			_errHandler.sync(this);
			switch ( getInterpreter().adaptivePredict(_input,163,_ctx) ) {
			case 1:
				{
				setState(1163);
				_errHandler.sync(this);
				switch ( getInterpreter().adaptivePredict(_input,161,_ctx) ) {
				case 1:
					{
					setState(1162);
					match(AS);
					}
					break;
				}
				setState(1167);
				_errHandler.sync(this);
				switch ( getInterpreter().adaptivePredict(_input,162,_ctx) ) {
				case 1:
					{
					setState(1165);
					((NamedExpressionContext)_localctx).name = errorCapturingIdentifier();
					}
					break;
				case 2:
					{
					setState(1166);
					identifierList();
					}
					break;
				}
				}
				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/v3.3/amoro-mixed-spark-3.3/src/main/gen-antlr/org/apache/amoro/spark/sql/parser/MixedFormatSqlExtendParser.java