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dario curreri 4e03c92059 refactor: add dialect enum (#18043 )

## Which issue does this PR close?

- Closes #18042 

## Rationale for this change

This PR introduces a new dialect enum to improve type safety and code
maintainability when handling different SQL dialects in DataFusion

1. Provide compile-time guarantees for dialect handling
2. Improve code readability and self-documentation
3. Enable better IDE support and autocomplete

## What changes are included in this PR?

- Added a new `Dialect` enum to represent supported SQL dialects
- Refactored existing code to use the new enum instead of previous
representations
- Modified tests to work with the new enum-based approach

## Are these changes tested?

Yes

## Are there any user-facing changes?

Yes, this is an API change: the type of the `dialect` field changed from
`String` to `Dialect`

2025-10-16 17:21:24 +00:00

examples

Adds Object Store Profiling options/commands to CLI (#18004 )

2025-10-10 21:28:32 +00:00

src

refactor: add dialect enum (#18043 )

2025-10-16 17:21:24 +00:00

tests

Adds Trace and Summary to CLI instrumented stores (#18064 )

2025-10-16 10:38:08 +00:00

Cargo.toml

refactor: add dialect enum (#18043 )