CreateQuery t0 (children 3)
 Identifier t0
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration vkey (children 1)
    DataType UInt32
   ColumnDeclaration c0 (children 1)
    DataType Float32
  Identifier c0
 Storage definition (children 1)
  Function AggregatingMergeTree
