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Apache DataFusion SQL Query Engine
## Which issue does this PR close? Part of #8708 ## Rationale for this change ## What changes are included in this PR? ## Are these changes tested? ## Are...
This is a draft PR that implements the ideas from https://github.com/apache/datafusion/issues/10426#issuecomment-2105664520. ## Which issue does this PR close? Closes https://github.com/apache/datafusion/issues/10426. ## Rationale for this change ## What changes are included...
### Is your feature request related to a problem or challenge? While working on https://github.com/apache/datafusion/pull/10500 I found reference to "the count" bug in the code but it wasn't clear it...
### Is your feature request related to a problem or challenge? I want to be able to cast a string that is delimited with "/" to a date the same...
File an issue to track the design of UDAF API Perhaps something like ```rust // form `FIRST_VALUE(a ORDER BY b)` let agg_expr = AggregateUDF::call(first_value()) .args(col("a")) .order_by(vec![col("b")) .build()?; ``` _Originally posted...
I extracted this from a conversation between @jayzhan211 and myself Basically the usecase is that the sql planner converts things like `[1, 2, 3]` to `make_array(1, 2, 3)` and the...
### Is your feature request related to a problem or challenge? It is common in databases and other analytic system to have additional external "indexes" (perhaps stored in the "metadata...
### Describe the bug These queries will give errors or incorrect results. ### To Reproduce Run queries in CLI: ```sh DataFusion CLI v38.0.0 > select array_slice([1,2,3], 1, NULL); Internal error:...
### Describe the bug I upgrade to the version 37.1.0 and cannot import it in python. ### To Reproduce ``` D:\>pip install datafusion -U Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple Requirement already...
### Is your feature request related to a problem or challenge? Tracking ticket for next release, also a place to track desired inclusions Last release was https://crates.io/crates/datafusion/38.0.0 (May 10, 2024)...