CreateQuery R2 (children 3)
 Identifier R2
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration B_ID (children 1)
    DataType UInt32
   ColumnDeclaration R1_A_ID (children 1)
    DataType UInt32
   ColumnDeclaration B_Data (children 1)
    DataType Float64
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier B_ID
  Set
