out of index[-1] for ColumnIndex

[fzhedu]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

func (s *Schema) ColumnIndex(col *Column) int this func return -1 if cannot find a column, but this case does not hold for calling functions, such as func (p *LogicalProjection) TryToGetChildProp. please fix all these bugs.

2. What did you expect to see? (Required)

https://asktug.com/t/topic/69881/4

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

5.0

[francis0407]

/assign

[ti-srebot]

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