Comments (1)
huahaiy
commented on May 19, 2024
OK, change of plans. We will be doing this first. So Datalevin 0.7.0 will have a brand new query engine built from scratch.
We will not be using the Asami query engine, since it has a query API different from Datascript/Datomic, which I would like to keep. In addition, Asami returns lazy seqs so its performance is not as good as originally thought. In fact it is slowest among the alternatives if doall is called on the results.
After an extensive literature research, I have come up with a query engine design that should reflect the latest research findings, yet is unique to the Datomic style EAV stores. This document has a sketch of the plan and tracks the work in progress.
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Related Issues (20)
- Import data from a SQL data source
- I managed to find a difference in how lookup refs are treated between datascript and datalevin HOT 1
- Function to turn off/on or set the sizes of Datalog caching
- Environment mapsize reached error after transacting HOT 14
- Expose more config options to users
- Dumping keywords with spaces 😭 HOT 1
- search example does not seem to work in 0.89 HOT 1
- Trying to run the search-bench HOT 8
- Consider OS version for native library extractor
- [Search] Implicitly consider proximity when positions are indexed
- Heap memory growth HOT 2
- Are rules with required bindings supported somehow? HOT 3
- Don't initialize search engine if the schema doesn't call for it
- Question: can I tell from tx-data returned by `transact!` if an attributed was added or not? HOT 13
- attributes with unthawable values won't retract or overwrite HOT 14
- Stemmer for search HOT 1
- No such var: c/+in-tx-overflow-times+ HOT 5
- Transaction Error: Entity cannot be retracted HOT 3
- [Client/Server] deal with cases when predicate definition contains references to DB
- Improve re-index
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