datafusion
datafusion copied to clipboard
apache
Apache DataFusion SQL Query Engine
I think we should add comment to occupy this position of `16` @dmitrybugakov @alamb @Omega359 _Originally posted by @liukun4515 in https://github.com/apache/datafusion/pull/10202#discussion_r1577553331_
This is a collection of tickets related to making DataFusion's planning speed faster. Planning speed is the time from a SQL string being created to when the `ExecutionPlan` is created...
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Here are multiple aggregate expressions have not support `distinct` usage yet. Though...
## Which issue does this PR close? Closes #10176 Closes #10074 Closes #10144 All in one in this PR. ## Rationale for this change ## What changes are included in...
### Describe the bug Hello, I'm using the input file `datafusion/core/tests/data/cars.csv` and running the `describe()` function. Below is the output of the `describe()` function: ``` +------------+-------+-------------------+---------------------+ | describe | car...
### Is your feature request related to a problem or challenge? now it reports an error ```sql > select 1 a,2 b union all select null,null; Error during planning: Projections...
### Is your feature request related to a problem or challenge? it took about 280s to group by 4 columns on a table of 1e8 rows ``` > create table...
## Which issue does this PR close? Closes #7490 . ## Rationale for this change See details in #7490 - this feature helps DataFusion eliminate sorts when files can be...
### Is your feature request related to a problem or challenge? I think the logic between these two logic is easily misuse, before someone come out a nice way to...
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** PostgreSQL, SparkSQL and Oracle support using `GROUPING` functions to specify the null...
