CreateQuery test_rewrite_uniq_to_count (children 3)
 Identifier test_rewrite_uniq_to_count
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration a (children 1)
    DataType UInt8
   ColumnDeclaration b (children 1)
    DataType UInt8
   ColumnDeclaration c (children 1)
    DataType UInt8
 Storage definition (children 2)
  Function MergeTree
  Identifier a
