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(disclaimer: I am biased being the one who merges sqlparser prs and also am the Apache DataFusion PMC chair)
# Problem Statement
[sqlparser](https://crates.io/crates/sqlparser/reverse_dependenci…
alamb updated
3 weeks ago
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### What is the problem the feature request solves?
Comet currently delegates to DataFusion for many cast operations, and the behavior is not guaranteed to match Spark. This epic is to track fully …
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### What is the problem the feature request solves?
Our recent benchmarks show that most TPC-H queries were faster with Comet enabled, but q14, q16, and q19 were slower. We should try and understan…
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### Is your feature request related to a problem or challenge?
DataFusion is such an exciting project, with so many great contributors and so many users that are building useful systems on top of it.…
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### What is the problem the feature request solves?
DataFusion HashJoin LeftAnti doesn't support null-aware anti join.
See https://github.com/apache/datafusion/issues/10583
### Describe the poten…
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**Is your feature request related to a problem? Please describe.**
If a plan contains nested unions/concats, we can instead flatten those to a single operation
Example:
```py
df.concat(df.conca…
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# Environment
**Delta-rs version**: v0.18.0
**Binding**: Rust
**Environment**:
- **Cloud provider**: na
- **OS**: Linux
- **Other**:
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# Bug
**What happened**:
Running the fo…
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### What is the problem the feature request solves?
During the Comet public meeting this morning, there were questions about when the first official release would be. We do not really have an answe…
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After support basic scan and catalog, we can consider to integrate with datafusion to speed up data driven tests.
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### Is your feature request related to a problem or challenge?
`StringView` / `BinaryView` were added to the Arrow format that make it more suitable for certain types of operations on strings. Spe…