CreateQuery test_projection_deduplicate (children 3)
 Identifier test_projection_deduplicate
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType Int32
   ColumnDeclaration string (children 1)
    DataType String
  ExpressionList (children 1)
   Projection (children 1)
    ProjectionSelectQuery (children 2)
     ExpressionList (children 1)
      Identifier id
     ExpressionList (children 1)
      Identifier id
 Storage definition (children 2)
  Function MergeTree
  Identifier id
