Andy Grove

### What is the problem the feature request solves? Comet now accelerates most of TPC-H, but there are still a small number of fallbacks happening. q11/20: ``` WARN CometSparkSessionExtensions: Comet...

Add support for StringSplit

2

### What is the problem the feature request solves? https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.split.html ### Describe the potential solution Please refer to the contributor guide: **[Adding a New Expression - Comet Contributor Guide](https://datafusion.apache.org/comet/contributor-guide/adding_a_new_expression.html)** This...

### What is the problem the feature request solves? DataFusion 51.0.0 will be available very soon. We should test for any issue before they release. https://github.com/apache/datafusion/issues/17558 ### Describe the potential...

Improve `checkSparkAnswer` methods to allow for validation of expected results

3

### What is the problem the feature request solves? When writing tests using `checkSparkAnswerAndOperator`, the testing API doesn't provide a convenient way to verify that the query actually produces the...

### What is the problem the feature request solves? We have many different testing styles, and it would be good to standardize on an approach to testing expressions. We should...

[EPIC] Improve Comet Correctness Testing for Expressions

2

### What is the problem the feature request solves? ## Background The main goal of Comet is to accelerate Spark jobs and produce the same results that Spark would have...

Decide whether we need to run PR and/or Spark SQL tests against debug builds of native libs

1

### What is the problem the feature request solves? _No response_ ### Describe the potential solution _No response_ ### Additional context _No response_

Use older version of GLIBC when building official Comet jars

1

### What is the problem the feature request solves? We have had numerous reports from users experiencing issues because they are using an older GLIBC version than the one we...

ExecutionMemoryPool errors releasing more memory than allocated

5

### Describe the bug As seen in https://github.com/apache/datafusion-comet/issues/2452, Comet sometimes tries to release memory that is not allocated. ``` 25/09/24 21:24:57 WARN ExecutionMemoryPool: Internal error: release called on 917504 bytes...

### What is the problem the feature request solves? We currently have multiple ways of reporting information about which parts of a plan are accelerated with Comet, and it is...