public final PropertyKeyContext propertyKey() throws RecognitionException {
		PropertyKeyContext _localctx = new PropertyKeyContext(_ctx, getState());
		enterRule(_localctx, 32, RULE_propertyKey);
		int _la;
		try {
			setState(379);
			_errHandler.sync(this);
			switch ( getInterpreter().adaptivePredict(_input,24,_ctx) ) {
			case 1:
				enterOuterAlt(_localctx, 1);
				{
				setState(370);
				identifier();
				setState(375);
				_errHandler.sync(this);
				_la = _input.LA(1);
				while (_la==DOT) {
					{
					{
					setState(371);
					match(DOT);
					setState(372);
					identifier();
					}
					}
					setState(377);
					_errHandler.sync(this);
					_la = _input.LA(1);
				}
				}
				break;
			case 2:
				enterOuterAlt(_localctx, 2);
				{
				setState(378);
				match(STRING);
				}
				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