datalog alternatives and similar packages
Based on the "Database" category.
Alternatively, view datalog alternatives based on common mentions on social networks and blogs.
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erd
Translates a plain text description of a relational database schema to a graphical entity-relationship diagram. -
persistent-redis
Persistence interface for Haskell allowing multiple storage methods. -
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acid-state
Add ACID guarantees to any serializable Haskell data structure -
postgresql-simple
Mid-level client library for accessing PostgreSQL from Haskell -
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HDBC-session
This repository includes a joined query generator based on typefull relational algebra, and mapping tools between SQL values list and Haskell record type. -
esqueleto
Bare bones, type-safe EDSL for SQL queries on persistent backends. -
groundhog
This library maps datatypes to a relational model, in a way similar to what ORM libraries do in OOP. See the tutorial https://www.schoolofhaskell.com/user/lykahb/groundhog for introduction -
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hw-kafka-client
Kafka client for Haskell, including auto-rebalancing consumers -
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mysql-simple
A mid-level client library for the MySQL database, intended to be fast and easy to use. -
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postgresql-simple-migration
PostgreSQL Schema Migrations for Haskell -
vcache
large, persistent, memcached values and structure sharing for Haskell -
direct-sqlite
Low-level binding to SQLite3. Includes UTF8 and BLOB support. -
dbmigrations
A library for the creation, management, and installation of schema updates for relational databases. -
vcache-trie
large, persistent, memcached values and structure sharing for Haskell -
postgresql-typed
Haskell PostgreSQL library with compile-time type inference -
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postgresql-tx
[Moved to: https://github.com/Simspace/postgresql-tx] -
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ampersand
Build database applications faster than anyone else, and keep your data pollution free as a bonus. -
postgresql-orm
An Haskell ORM (Object Relational Mapping) and migrations DSL for PostgreSQL. -
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persistent-database-url
Parse DATABASE_URL into configuration types for Persistent -
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Popular Comparisons
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datalogvshsparql
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datalogvsdsh-sql
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datalogvshocilib
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datalogvsHongoDB
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datalogvsdirect-sqlite
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README
This is a pure Haskell implementation of Datalog, as a library
Datalog is a logic language that allows for recursive database queries. This implementation is distinguished from many others in that it is embeddable as a library in other (Haskell) programs. A driver program that operates on textual input is also planned.
It is currently just a semi-naive evaluator, but it is reasonably efficient. The implementation is currently in its early stages but it seems to produce reasonably correct results. See the test suite for some details.
Planned Enhancements
- Magic sets transformation
- Optional BDD backend for a subset of queries
- Rewrite literals like f(X,X) into f(X,Y), X=Y. A few internals assume that the same variable doesn't appear twice in a literal.