EmmyMiao87 commented on code in PR #8906:
URL: https://github.com/apache/incubator-doris/pull/8906#discussion_r846036375
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fe/fe-core/src/main/cup/sql_parser.cup:
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@@ -544,6 +544,7 @@ precedence left KW_LIKE, KW_REGEXP;
precedence left EQUAL, LESSTHAN, GREATERTHAN;
precedence left ADD, SUBTRACT;
precedence left AT, STAR, DIVIDE, MOD, KW_DIV;
+precedence left KW_EXCEPT;
Review Comment:
What is the purpose of adding this line?
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fe/fe-core/src/main/cup/sql_parser.cup:
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@@ -4007,6 +4015,12 @@ select_sublist ::=
list.addItem(SelectListItem.createStarItem(null));
RESULT = list;
:}
+ | select_sublist:list COMMA STAR except_list:exceptList
Review Comment:
What's this mean ```select a, * except (a)```
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