CreateQuery cool_table (children 3)
 Identifier cool_table
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration n (children 1)
    DataType Nested (children 1)
     ExpressionList (children 2)
      NameTypePair n (children 1)
       DataType UInt64
      NameTypePair lc1 (children 1)
       DataType Array (children 1)
        ExpressionList (children 1)
         DataType LowCardinality (children 1)
          ExpressionList (children 1)
           DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id
