hasql-pool

Pool of connections for Hasql

https://github.com/nikita-volkov/hasql-pool

LTS Haskell 22.39:0.10.1
Stackage Nightly 2024-10-29:1.2.0.2
Latest on Hackage:1.2.0.2

See all snapshots hasql-pool appears in

MIT licensed and maintained by Nikita Volkov
This version can be pinned in stack with:hasql-pool-1.2.0.2@sha256:621e3997d701b424a777fc6cd0218e385c89dff9417a933305d19b03820deb3f,2389

Module documentation for 1.2.0.2

Used by 1 package in nightly-2024-10-29(full list with versions):
hasql-optparse-applicative

Changes

1.2

  • Migrated to hasql-1.7
  • Changed references to QueryError in observations to SessionError

1.1

  • ReadyForUseConnectionStatus got extended with the ConnectionReadyForUseReason details.
  • initSession setting added.

1

  • Optional observability event stream added. Provides a flexible mechanism for monitoring the healthiness of the pool via logs and metrics.
  • Configuration got isolated into a DSL, which will allow to provide new configurations without breaking backward compatibility.

0.10.1

  • Avoid releasing connections on exceptions thrown in session

0.9

  • Maximal lifetime added for connections. Allows to refresh the connections in time cleaning up the resources.

Breaking:

  • The acquisition timeout is now non-optional.
  • Moved to DiffTime for timeouts.

0.8.0.7

Fix excessive connections during releases due to race conditions.

0.8.0.5

Fix connections not returning to the pool on exceptions.

0.8.0.2

Fixed Windows build.

0.8

release became reusable. You can use it to destroy the whole pool (same as before), but now also you can use it to reset the connections.

Acquisition timeout added.

Breaking changes in API:

  • Removed PoolIsReleasedUsageError
  • acquire extended with the acquisition timeout parameter
  • acquireDynamically extended with the acquisition timeout parameter

0.7.2

Added support for dynamic connection configuration (issue #11).

0.7.1.2

Fixed connections not being released if they were in use during the call to release.

0.7.1

Added Exception for UsageError.

0.7

Simplified the implementation a lot by removing the notion of timeout.

Breaking:

  • Removed the Settings type
  • Changed the signature of acquire

0.6

Moved away from “resource-pool” and fixed the handling of lost connections.

Breaking:

  • Changed the suffix of UsageError constructors from Error to UsageError
  • Added PoolIsReleasedUsageError