CreateQuery test_agg_variant (children 3)
 Identifier test_agg_variant
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration Name (children 1)
    DataType String
   ColumnDeclaration Value (children 1)
    DataType Variant (children 1)
     ExpressionList (children 2)
      DataType AggregateFunction (children 1)
       ExpressionList (children 2)
        Identifier uniqExact
        DataType Int64
      DataType AggregateFunction (children 1)
       ExpressionList (children 2)
        Identifier avg
        DataType Int64
 Storage definition (children 2)
  Function MergeTree
  Identifier Name
