Disallow column overwrite by moving rules
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bug
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priority: medium
- Dominant language
- Scala
- Stars
- 33
- Forks
- 16
- PR merge metrics
- No merged PRs in 30d
Description
## Describe the bug
Currently, it's possible to move a rule where it would produce a column overwrite.
## To Reproduce
Steps to reproduce the behaviour:
1. Create a rule with output column Alfa
2. Create a drop rule for Alfa
3. Create another rule with output column Alfa
4. Move rule from step 3. above the drop rule.
## Expected behaviour
I should not be able to move a rule if moving it would produce a column overwrite.
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