CreateQuery fat_granularity (children 3)
 Identifier fat_granularity
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType UInt32
   ColumnDeclaration fat (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_160000
 Storage definition (children 3)
  Function MergeTree
  Identifier x
  Set
