CreateQuery t_filter (children 3)
 Identifier t_filter
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration s (children 1)
    DataType String
   ColumnDeclaration a (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType FixedString (children 1)
       ExpressionList (children 1)
        Literal UInt64_3
   ColumnDeclaration u (children 1)
    DataType UInt64
   ColumnDeclaration f (children 1)
    DataType UInt8
 Storage definition (children 2)
  Function MergeTree
  Identifier u
