[CH] utilize CH LowCardinality(String) when reading/writing ORC/Parquet files.
Open
enhancement
- Dominant language
- Scala
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- Avg merge
- 2d 21h
- Merged PRs (30d)
- 85
Description
### Description
- utilize CH LowCardinality(String) when reading ORC/Parquet files.
- utilize LC column during processing
- utilize LC column when writing ORC/Parquet files
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