v0.4.3

• Fix panic when inserting into table without columns.
• Add Select::map method.
• Deprecate IntoSelectExt::map_select.
• Deprecate Aggregate::join_on.

v0.4.2

• Update the Rows::join method to take a constant argument.
  This is now the prefered join syntax and all examples have been updated.
• Allow arbitrary correlated subqueries.
  This means that Aggregate now has an implied bound that allows leaking Expr from the
  out scope. Correlated subqueries are decorrelated before translating to SQL.
• Fix loose lifetime on Optional.

v0.4.1

• Change conflicts back to using TableRow instead of Expr.
  Changing the conflict type to Expr was a mistake, because the Expr can be invalidated.
• Fix #[schema] macro not showing errors for unique constraints.

v0.4.0

Blog post: https://blog.lucasholten.com/rust-query-0-4/

Optional Queries

• Added optional combinator.
• Changed Expr to be co-variant in its lifetime.

Basic Datatypes and Operations

• Added support for Vec<u8> data type (sqlite BLOB).
• Added some more basic operations on expressions.

Updates, Insert and Query

• Added safe updates of a subset of columns for each table.
• Update statements now use the Update type for each column.
• Insert and update conflict is now an Expr (find_or_insert returns an Expr now too).
• Rows::into_vec is no longer sorted automatically.

Schema and Mirations

• Changed #[schema] syntax to be a module of structs.
• Added #[from] attribute to allow renaming tables and splitting tables in the schema.
• The generated migration structs have moved from e.g. v1::update::UserMigration to v0::migrate::User.
• Migrations now require explicit handling of potential unique constraint violations.
• Migrations now require explicit handling of foreign key violations.

Type Driven Select

• Added a macro for each table to create ad-hoc column selection types like User!(name, age).
• Added the FromExpr trait to allow custom column selection and conversion.

Feature Flags and Dependencies

• TransactionWeak::rusqlite_transaction is renamed and no longer behind a feature flag.
• hash_schema method was moved behind dev feature which is enabled by default.
• Updated dependencies.

Renaming

• Renamed Dummy to Select.
• Renamed Column to Expr.
• Renamed try_insert to insert and insert to insert_ok.
• Renamed try_delete to delete and delete to delete_ok.
• Renamed try_update to update and update to update_ok.

v0.3.1

• Added error message when defining an id column.
• Added support for sqlite LIKE and GLOB operators.
• Added support for DELETE using TransactionWeak and #[no_reference].
• Added TransactionWeak::unchecked_transaction behind feature flag.
• Added impl ToSql for TableRow behind unchecked_transaction feature flag.
• Removed impl RefCast for Transaction, it was not intended to be public.
• Removed impl FromSql for TableRow, it was not intended to be public.

v0.3.0

• Added support for updating rows.
• Added Table::dummy method, which makes it easier to do partial updates.
• Reused table types in the generated API for both naming TableRow<User> and dummies User {name: "steve"}.
• Forbid Option in unique constraints.
• Renamed ThreadToken to LocalClient.
• Renamed and moved read and write_lock to transaction and transaction_mut.
• Check schema_version at the start of every transaction.
• Simplify migration and borrow LocalClient only once.
• Renamed Prepare to Config and simplified its API.

v0.2.2

• Bound the lifetime of TableRow: IntoColumn to the lifetime of the transaction.
  Without the bound it was possible to sneak TableRows into following transacions.
  
  query_one now checks that its input lives for as long as the transaction.
  To make sure that query_one still checks that the dummy is "global", the transaction now has an invariant lifetime.

v0.2.1

• Relax Transaction creation to not borrow the Database.
• Add missing lifetime bound on try_inserts return value.
  Technically this is a breaking change, but it fixes a bug so it is still a patch release.
• Fix the version of the macro crate exactly (=0.2.0) to allow future internal API changes with only a patch release.

v0.2.0

• Rewrote almost the whole library to specify the schema using enum syntax with a proc macro.
• Added a single Column type to handle a lot of query building.
• Dummy trait to retrieve multiple values at once and allow post processing.
• Added support for transactions and multiple schemas.