1.8.0.0

Added

• Added Rel8.TH.deriveRel8able and Rel8.TH.deriveRel8ables for deriving Rel8able instances using TemplateHaskell.
  This can be significantly faster than using Generics. In testing, we have seen 80% reductions in build time!

• Expose all rel8 internal modules from the rel8-internal package.

• Added new Conflict and Index types. Conflict represents a conflict_target in an ON CONFLICT. It can be either a named constraint (ON CONSTRAINT) or a an Index.

• Added Index. Index is a description of a unique index which PostgreSQL can use for unique index inference. This is an alternative to specifying an explicit named constraint in a conflict_target.

• Add notElem and notElem1 to Rel8.Array

• Added preliminary support for PostgreSQL ranges.

• Support GHC-9.14 and semialign >= 1.4.

• Added notElem and notElem1 to Rel8.Array.

• Added DBType Aeson.Object instance.

• Bumped a variety of bounds.

Changed

• The Upsert type was changed. Previously it had the columns (index, predicate) of what is now the Index type baked into its record. It now instead has a single conflict column (of type Conflict, which can be either an Index or a named constraint).

• The DoNothing constructor of OnConflict was changed to also take an optional Conflict value. Even though ON CONFLICT DO NOTHING does not generally require a conflict_target, there are cases where it can be necessary, e.g., if you have table that has both deferrable and non-deferrable constraints.

• rel8 now requires at least version 0.10.8.0 of opaleye

Fixed

• elem and elem1 now use IS NOT DISTINCT FROM semantics (matching (==.)) when the element type is nullable, so null is found in an array containing null. Previously they were implemented with the array containment operator <@, which never matches null.

• Fixed some issues around the truncation of long column names.

• Improved documentation.