CreateQuery bug_delta_gorilla (children 3)
 Identifier bug_delta_gorilla
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration val (children 2)
    DataType UInt64
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function Delta
      Function Gorilla
 Storage definition (children 3)
  Function MergeTree
  Identifier val
  Set
