databrickslabs / databrickslabs/lsql
SqlBackend cannot create schema for dataclasses inheriting from dataclasses
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- Dominant language
- Python
- Stars
- 39
- Forks
- 8
- PR merge metrics
- No merged PRs in 30d
Description
Say you have the following:
@dataclass
class MyBaseDataClass:
path: str
@dataclass
class MyDerivedDataClass(MyBaseDataClass):
name: str
Then SqlBackend._schema_for fails because field_type for path is 'str' (type name) rather than <type str> (type instance)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by inspecting SqlBackend._schema_for and reproduce the failure with the inherited dataclass example in the issue. Check how inherited fields are represented and verify that schema creation succeeds for both path and name without changing behavior for non-inherited dataclasses.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 42/100