CreateQuery explain_index_mapContains (children 2)
 Identifier explain_index_mapContains
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 5)
    ExpressionList (children 1)
     Function trimLeft (alias explain) (children 1)
      ExpressionList (children 1)
       Identifier explain
    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 \'indexes = 1\'
                Subquery (children 1)
                 SelectWithUnionQuery (children 1)
                  ExpressionList (children 1)
                   SelectQuery (children 3)
                    ExpressionList (children 1)
                     Function count (children 1)
                      ExpressionList
                    TablesInSelectQuery (children 1)
                     TablesInSelectQueryElement (children 1)
                      TableExpression (children 1)
                       TableIdentifier tab
                    Function multiIf (children 1)
                     ExpressionList (children 3)
                      Function equals (children 1)
                       ExpressionList (children 2)
                        QueryParameter use_idx_fixed:boolean
                        Literal UInt64_1
                      Function mapContains (children 1)
                       ExpressionList (children 2)
                        Identifier map_fixed
                        QueryParameter filter:FixedString(2)
                      Function mapContains (children 1)
                       ExpressionList (children 2)
                        Identifier map
                        QueryParameter filter:String
    Function or (children 1)
     ExpressionList (children 3)
      Function like (children 1)
       ExpressionList (children 2)
        Identifier explain
        Literal \'%Description:%\'
      Function like (children 1)
       ExpressionList (children 2)
        Identifier explain
        Literal \'%Parts:%\'
      Function like (children 1)
       ExpressionList (children 2)
        Identifier explain
        Literal \'%Granules:%\'
    Literal UInt64_2
    Literal UInt64_3
