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Apache DataFusion SQL Query Engine
## Which issue does this PR close? Closes #4680 ## Rationale for this change ## What changes are included in this PR? ## Are these changes tested? ## Are there...
## Which issue does this PR close? ref #6768 ## Rationale for this change Some projection can't be pushed down left input or right input of hash join because `filter`...
## Which issue does this PR close? Part of https://github.com/apache/arrow-datafusion/issues/8913 ## Rationale for this change 1. The `TreeNode.rewrite()` / `TreeNodeRewriter` is very inconsistent with other `TreeNode` apply / visit functions:...
### Describe the bug I'am testing DataFusion for using it in a system which has several thousand columns and billions of rows. I'm excited about the flexibility and possibilities this...
### Is your feature request related to a problem or challenge? As part of making DataFusion even more customizable (https://github.com/apache/arrow-datafusion/issues/8045), it is valuable to let system designers mix and match...
### Is your feature request related to a problem or challenge? Databases / ETL solutions built on top of DataFusion can use UDFs (in their various forms) to extend the...
### Is your feature request related to a problem or challenge? log10('-Infinity'); log2('-Infinity'); power('Infinity',2) As above, using the + infinity function in some math functions will report an error in...
### Describe the bug ``` select lag(a) over () as x1 from (select 2 id, 'b' a union all select 1 id, null a union all select 3 id, null);...
### Is your feature request related to a problem or challenge? the 'unnest' table function reads an array or list, and out put a table ### Describe the solution you'd...
## Which issue does this PR close? Closes #9178 ## Rationale for this change ## What changes are included in this PR? ## Are these changes tested? ## Are there...
