SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function REGEXP_REPLACE (children 1)
     ExpressionList (children 3)
      Function trimLeft (children 1)
       ExpressionList (children 1)
        Identifier explain
      Literal \'__set_Int32_\\\\d+_\\\\d+\'
      Literal \'__set_Int32_UNIQ_ID\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function viewExplain (children 1)
              ExpressionList (children 3)
               Literal \'EXPLAIN\'
               Literal \'actions = 1\'
               Subquery (children 1)
                SelectWithUnionQuery (children 1)
                 ExpressionList (children 1)
                  SelectQuery (children 4)
                   ExpressionList (children 3)
                    Identifier t1.k
                    Identifier t1.a
                    Identifier t2.x
                   TablesInSelectQuery (children 2)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier tp1 (alias t1)
                    TablesInSelectQueryElement (children 2)
                     TableExpression (children 1)
                      TableIdentifier tp2 (alias t2)
                     TableJoin (children 1)
                      Function equals (children 1)
                       ExpressionList (children 2)
                        Identifier t1.k
                        Identifier t2.k
                   Function or (children 1)
                    ExpressionList (children 2)
                     Function in (children 1)
                      ExpressionList (children 2)
                       Identifier t1.k
                       Literal Tuple_(UInt64_1, UInt64_2)
                     Function in (children 1)
                      ExpressionList (children 2)
                       Identifier t1.k
                       Literal Tuple_(UInt64_3, UInt64_4)
                   ExpressionList (children 1)
                    OrderByElement (children 1)
                     Identifier t1.k
   Function ilike (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%Filter column: %\'
   Set
 Identifier TSV
