count(*) get extra column

[st1page]

> create table t1(v1 int, v2 int);
> create table t2(v3 int, v4 int);
> explain select count(*) from t1 join t2 on v2=v3; 
+------------------------------------------------------------------------------------+
| Projection: exprs [#0]                                                             |
|   SimpleAgg: [RowCount([#1]) -> Int(None)]                                         |
|     Join: type NestedLoop                                                          |
|       SeqScan: table #0, columns [1, 0], with_row_handler: false, is_sorted: false |
|       SeqScan: table #1, columns [0], with_row_handler: false, is_sorted: false    |
+------------------------------------------------------------------------------------+

[xxchan]

fixed now

> explain select count(*) from t1 join t2 on v2=v3; 
PhysicalProjection: exprs [InputRef #0]
  PhysicalSimpleAgg: 1 agg calls
    PhysicalHashJoin: op Inner, predicate: Eq(InputRef #0, InputRef #1) 
      PhysicalTableScan: table #11, columns [1], with_row_handler: false, is_sorted: false, expr: None
      PhysicalTableScan: table #12, columns [0], with_row_handler: false, is_sorted: false, expr: None