CreateQuery t2_00844 (children 3)
 Identifier t2_00844
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration f1 (children 1)
    DataType String
   ColumnDeclaration f3 (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier f1