CreateQuery 02538_bf_ngrambf_map_values_test (children 3)
 Identifier 02538_bf_ngrambf_map_values_test
 Columns definition (children 2)
  ExpressionList (children 3)
   ColumnDeclaration row_id (children 1)
    DataType Int128
   ColumnDeclaration map (children 1)
    DataType Map (children 1)
     ExpressionList (children 2)
      DataType String
      DataType String
   ColumnDeclaration map_fixed (children 1)
    DataType Map (children 1)
     ExpressionList (children 2)
      DataType FixedString (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
      DataType String
  ExpressionList (children 2)
   Index (children 2)
    Function mapKeys (children 1)
     ExpressionList (children 1)
      Identifier map
    Function ngrambf_v1 (children 1)
     ExpressionList (children 4)
      Literal UInt64_4
      Literal UInt64_256
      Literal UInt64_2
      Literal UInt64_0
   Index (children 2)
    Function mapKeys (children 1)
     ExpressionList (children 1)
      Identifier map_fixed
    Function ngrambf_v1 (children 1)
     ExpressionList (children 4)
      Literal UInt64_4
      Literal UInt64_256
      Literal UInt64_2
      Literal UInt64_0
 Storage definition (children 3)
  Function MergeTree
  Identifier row_id
  Set
