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Related to #166 .
Qbeast-Spark should be compatible with latest versions of Delta Lake and Apache Spark, to benefit from any new features and major upgrades.
The change to Delta version 2.1.0 and …
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This issue contains an overview of all (known) performance issues in Comunica, and steps to resolve them.
## Sub-optimal query plan
* Joins
* #548
* #725
* #772
* #834
* #552
*…
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When reading from multiple files we can pushdown distinct to those nodes and do a final distinct after the union. This may save a lot of memory.
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
### Reprodu…
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## Motivation:
Once we merge #324 and complete the basic groundwork, the integration crate can be continuously refined. Due to for example more supported features like predicate pushdown, etc.
Thi…
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## Feature Request
**Is your feature request related to a problem? Please describe:**
The fast-path point get in TiDB fetch the whole row from TiKV. There is no column projection pushdown for …
dbsid updated
4 months ago
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### What should be done?
Pushdown skip for pg. Similarly to `limit`.
### Where?
https://github.com/FerretDB/FerretDB/blob/main/internal/handlers/pg/msg_find.go
https://github.com/FerretDB/Fe…
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Dask already implements the logic, to only extract columns from a parquet files which are actually needed - reducing the amount of IO.
We should make sure this feature is correctly used in `dask-sql`…
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Related to #1847
Here's list of mathematics funcitons supported by TiKV but not supported by TiFlash:
- [x] Ceil
- [x] Ceiling
- [x] Floor
- [x] Sqrt
- [ ] Sign
- [x] Ln
- [x] Log
- [x]…
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Some regex filter operations can probably be pushed down as prefix queries, this should be investigated further.
For context https://github.com/elastic/elasticsearch/pull/98528#discussion_r1308986725