Removed support for constant expressions in TOP because they cannot work

dbms/src/Parsers/ParserSelectQuery.cpp

@@ -71,16 +71,18 @@ bool ParserSelectQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
 
         if (s_top.ignore(pos, expected))
         {
+            ParserNumber num;
+
             if (open_bracket.ignore(pos, expected))
             {
-                if (!exp_elem.parse(pos, select_query->limit_length, expected))
+                if (!num.parse(pos, select_query->limit_length, expected))
                     return false;
                 if (!close_bracket.ignore(pos, expected))
                     return false;
             }
             else
             {
-                if (!exp_elem.parse(pos, select_query->limit_length, expected))
+                if (!num.parse(pos, select_query->limit_length, expected))
                     return false;
             }
         }

dbms/tests/queries/0_stateless/00834_limit_with_constant_expressions.sql

@@ -16,7 +16,7 @@ SELECT count() <= 1 FROM (SELECT number FROM numbers(10) LIMIT randConstant() %
 SELECT number FROM numbers(10) LIMIT 0 + 1 BY number;
 SELECT number FROM numbers(10) LIMIT 0 BY number;
 
-SELECT TOP(3 + 2) number FROM numbers(10);
+SELECT TOP 5 * FROM numbers(10);
 
 SELECT * FROM numbers(10) LIMIT 0.33 / 0.165 - 0.33 + 0.67; -- { serverError 440 }
 SELECT * FROM numbers(10) LIMIT LENGTH('NNN') + COS(0), toDate('0000-00-02'); -- { serverError 440 }