CreateQuery t_2354_dist_with_external_aggr (children 3)
 Identifier t_2354_dist_with_external_aggr
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration a (children 1)
    DataType UInt64
   ColumnDeclaration b (children 1)
    DataType String
   ColumnDeclaration c (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_100
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set
