persistent-postgresql

Backend for the persistent library using postgresql. http://www.yesodweb.com/book/persistent

Version on this page:2.1.6
LTS Haskell 12.24:2.8.2.0
Stackage Nightly 2018-12-19:2.9.0
Latest on Hackage:2.9.0

See all snapshots persistent-postgresql appears in

MIT licensed by Felipe Lessa, Michael Snoyman
Maintained by Michael Snoyman

Module documentation for 2.1.6

Based on the postgresql-simple package

Changes

Changelog for persistent-postgresql

2.9.0

  • Added support for SQL isolation levels to via SqlBackend. [#812]
  • Fix 832: repsertMany now matches mapM_ (uncurry repsert) and is atomic.

2.8.2

Added module Database.Persist.Postgres.JSON #793

  • PersistField and PersistFieldSql instances for Data.Aeson.Value
  • Filter operators (@>.) and (<@.) to filter on JSON values

2.8.1.1

  • Added a more detailed error message when a numeric column’s scale and precision can’t be parsed. #781

2.8.1

  • Implemented connPutManySql to utilize batched putMany. #770

2.8.0

  • Switch from MonadBaseControl to MonadUnliftIO

2.6.3

  • Added new function migrateEnableExtension, to enable Postgres extensions in migrations.

2.6.2.2

  • Because text and varchar are synonyms in Postgresql, don’t attempt to migrate between them. #762

2.6.2.1

  • Fix bug where, if a custom column width was set, the field would be migrated every time #742

2.6.2

  • Expose new functions: withPostgresqlPoolWithVersion, withPostgresqlConnWithVersion and createPostgresqlPoolModifiedWithVersion.

2.6.1

  • Match changes in persistent
  • Clean up warnings

2.6

  • Atomic upsert support for postgreSQL backend

2.5

  • changes for read/write typeclass split

2.2.2

  • Postgresql primary key is Int4, not Int8 #519

2.2.1.2

  • Allow postgresql-simple 0.5

2.2.1.1

Query pg_catalog instead of information_schema for metadata. This helps with permission issues as reported in issue #501

2.2.1

  • Fix treatment of NULLs inside arrays. For example, now you can use array_agg on a nullable column.

  • New derived instances for PostgresConf: Read, Data and Typeable.

  • New mockMigration function. Works like printMigration but doesn’t need a database connection.

  • Fix typo on error message of the FromJSON instance of PostgresConf.

2.2

  • Optimize the insertMany function to insert all rows and retrieve their keys in one SQL query. #407

2.1.6

  • Postgresql exceptions #353

2.1.5.3

Migrations for custom primary keys

2.1.5.2

Support foreign key references to composite primary keys #389

2.1.5

  • Allow timestamp value in database to be serialized (presumes UTC timezone) Yesod #391

2.1.4

  • Treat unknown extension types as PersistDbSpecific values #385

2.1.3

2.1.2.1

Documentation typo fix

2.1.1

Added FromJSON instance for PostgresConf.

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