Bump diesel from 1.4.4 to 2.0.1

[dependabot]

Bumps diesel from 1.4.4 to 2.0.1.

Release notes

Sourced from diesel's releases.

Diesel 2.0.1

This is a bugfix release containing the following fixes:

• Fixed an issue with diesel_cli generating incompatible type names for the generate_missing_sql_type_definitions feature on PostgreSQL
• Fixed an issue how diesel_cli handles sqlite urls while checking if a given database exists
• Fixed an issue with PgConnection becoming unusable after hitting a database error in certain situations
• Fixed an issue with diesel generating invalid SQL for certain INSERT … ON CONFLICT queries
• Fixed diesel_derives generating code that triggers the disabled by default unused_qualifications lint

This release includes updated versions of diesel, diesel_cli and diesel_derives

Diesel 2.0.0 contains the contributions of more than 130 people. More than 1700 commits were submitted over a span of 3 years.

As part of this release we introduced numerous new features and rewrote large parts of the internal structure. Check out our changelog for a complete list of changes. As this is a new major Diesel release it contains a number of breaking changes. Checkout our migration guide for details about how to handle those breaking changes.

This release contains the following parts:

• diesel 2.0.0-rc.0
• diesel_derives 2.0.0-rc.0
• diesel_migrations 2.0.0-rc.0
• diesel_cli 2.0.0-rc.0
• diesel_dynamic_schema 0.2.0-rc.0

This release marks a first prerelease of the upcoming Diesel 2.0 release. We ask you for your help to finalise the release. Checkout the "Timeline for a Diesel 2.0 release" section for details about how you can help us finishing the release.

Features

As a highlight Diesel 2.0.0 adds support for the following features:

• Fully type checked GROUP BY support
• Support for table aliasing
• Support for defining select clauses via a corresponding type
• Support for UNION/INTERSECT queries

Support for GROUP BY clauses

Diesel 2.0 adds support for GROUP BY clauses for select queries.

This means queries like the following one will just work.

 users::table.inner_join(posts::table)
    .group_by(users::id)
    .select((users::name, count(posts::id)))

... (truncated)

Changelog

Sourced from diesel's changelog.

[2.0.1] 2022-10-07

Fixed

• Fixed an issue with diesel_cli generating incompatible type names for the generate_missing_sql_type_definitions feature on PostgreSQL
• Fixed an issue how diesel_cli handles sqlite urls while checking if a given database exists
• Fixed an issue with PgConnection becoming unusable after hitting a database error in certain situations
• Fixed an issue with diesel generating invalid SQL for certain INSERT … ON CONFLICT queries
• Fixed diesel_derives generating code that triggers the disabled by default unused_qualifications lint

[2.0.0] 2022-08-29

Added

• MysqlConnection::establish is able to initiate an SSL connection while specifying certificate roots. The database URL should contain an ssl_ca parameter with a path pointing to the certificate roots. See docs if desired.

• MysqlConnection::establish is able to initiate an SSL connection. The database URL should contain ssl_mode parameter with a value of the MySQL client command option --ssl-mode if desired.

• Connection and SimpleConnection traits are implemented for a broader range of r2d2::PooledConnection<M> types when the r2d2 feature is enabled.

• Added DatabaseErrorKind::ReadOnlyTransaction to allow applications to handle errors caused by writing when only allowed to read.

• All expression methods can now be called on expressions of nullable types.

• Added BoxedSqlQuery. This allows users to do a variable amount of .sql or .bind calls without changing the underlying type.

• Added .sql to SqlQuery and UncheckedBind to allow appending SQL code to an existing query.

• The MacAddr SQL type can now be used without enabling the network-address feature.

• Added support for SQLite's UPSERT. You can use this feature above SQLite version 3.24.0.

• Added ability to create custom aggregate functions in SQLite.

• Multiple aggregate expressions can now appear together in the same select clause. See the upgrade notes for details.

• ValidGrouping has been added to represent whether an expression is valid for a given group by clause, and whether or not it's aggregate. It replaces the functionality of NonAggregate. See the upgrade notes for details.

• It is now possible to inspect the type of values returned from the database in such a way to support constructing a dynamic value depending on this type.

... (truncated)

Commits

• c163482 Insert the release date of 2.0.1 into the changelog
• b1d030c Prepare a 2.0.1 release fixing various issues
• 0d77050 Fix indent
• 8444d15 fix fmt
• 7d512b8 fixed unused qualifications issue in insertable
• 051f39f Fix #3330
• 91a4f1e Reenable diesel_async in benchmarks by using the crates.io release
• 3455cfe move table definition to relevant test method
• c8f4e4f clear connection after database error
• 336e9a4 Verify that group_by expression is valid for the given table
• Additional commits viewable in compare view

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[dependabot]

Superseded by #82.