CreateQuery t1 (children 3)
 Identifier t1
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration a0 (children 1)
    DataType UInt8
   ColumnDeclaration c0 (children 1)
    DataType Int32
   ColumnDeclaration c1 (children 1)
    DataType UInt8
 Storage definition (children 2)
  Function AggregatingMergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
