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Posted to github@datafusion.apache.org by "milenkovicm (via GitHub)" <gi...@apache.org> on 2025/11/14 15:24:29 UTC
[PR] fix: Disable table name normalisation as default behaviour [datafusion]
milenkovicm opened a new pull request, #18708:
URL: https://github.com/apache/datafusion/pull/18708
## Which issue does this PR close?
- Closes #18675.
## Rationale for this change
There are cases for which case sensitive column names and table references are needed, so having forced `to_ascii_lowercase` for names breaks support for them.
`datafusion.sql_parser.enable_ident_normalization=false` will help with column names but table names and few other things will be converted to lowercase, or not (as described in the bug)
This is potentially VERY BREAKING change, it disables forced `to_ascii_lowercase` for table reference and columns, as behaviour was hardcoded.
## What changes are included in this PR?
- disable forced to lowercase conversion for table ref and columns
- test to verify bug
## Are these changes tested?
yes
## Are there any user-facing changes?
yes,
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Re: [PR] fix: Disable table name normalisation as default behaviour [datafusion]
Posted by "milenkovicm (via GitHub)" <gi...@apache.org>.
milenkovicm closed pull request #18708: fix: Disable table name normalisation as default behaviour
URL: https://github.com/apache/datafusion/pull/18708
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