2018.4.21
//System.out.println("leftAttr: "+leftTableAttrName);
//System.out.println("rightAttr: "+rightTableAttrName);
// where attrName = attrValue 也是乞丐版
String whereAttrName = ctx.multiple_condition()
.condition()
.expression(0)
.comparer()
.column_full_name()
.column_name()
.getText();
String whereComparator = ctx.multiple_condition()
.condition()
.comparator()
.getText();
String whereAttrValue = ctx.multiple_condition()
.condition()
.expression(1)
.comparer()
.literal_value()
.getText();
//System.out.println("attrName: "+whereAttrName);
//System.out.println("attrValue: "+whereAttrValue);
//System.out.println("operator: "+whereComparator);