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Change Log

v0.7.6 - 2022-04-30

Added

  • Added support for uuid 1.0 via the with-uuid-1 feature.

Changed

  • Upgraded to tokio-util 0.7.
  • Upgraded to parking_lot 0.12.

v0.7.5 - 2021-10-29

Fixed

  • Fixed a bug where the client could enter into a transaction if the Client::transaction future was dropped before completion.

v0.7.4 - 2021-10-19

Fixed

  • Fixed reporting of commit-time errors triggered by deferred constraints.

v0.7.3 - 2021-09-29

Fixed

  • Fixed a deadlock when pipelined requests concurrently prepare cached typeinfo queries.

Added

  • Added SimpleQueryRow::columns.
  • Added support for eui48 1.0 via the with-eui48-1 feature.
  • Added FromSql and ToSql implementations for arrays via the array-impls feature.
  • Added support for time 0.3 via the with-time-0_3 feature.

v0.7.2 - 2021-04-25

Fixed

  • SqlState constants can now be used in match patterns.

v0.7.1 - 2021-04-03

Added

  • Added support for geo-types 0.7 via with-geo-types-0_7 feature.
  • Added Client::clear_type_cache.
  • Added Error::as_db_error and Error::is_closed.

v0.7.0 - 2020-12-25

Changed

  • Upgraded to tokio 1.0.
  • Upgraded to postgres-types 0.2.

Added

  • Methods taking iterators of ToSql values can now take both &dyn ToSql and T: ToSql values.

v0.6.0 - 2020-10-17

Changed

  • Upgraded to tokio 0.3.
  • Added the detail and hint fields to DbError's Display implementation.

v0.5.5 - 2020-07-03

Added

  • Added support for geo-types 0.6.

v0.5.4 - 2020-05-01

Added

  • Added Transaction::savepoint, which can be used to create a savepoint with a custom name.

v0.5.3 - 2020-03-05

Added

  • Added Debug implementations for Client, Row, and Column.
  • Added time 0.2 support.

v0.5.2 - 2020-01-31

Fixed

  • Notice messages sent during the initial connection process are now collected and returned first from Connection::poll_message.

Deprecated

  • Deprecated Client::cancel_query and Client::cancel_query_raw in favor of Client::cancel_token.

Added

  • Added Client::build_transaction to allow configuration of various transaction options.
  • Added Client::cancel_token, which returns a separate owned object that can be used to cancel queries.
  • Added accessors for Config fields.
  • Added a GenericClient trait implemented for Client and Transaction and covering shared functionality.

v0.5.1 - 2019-12-25

Fixed

  • Removed some stray println!s from copy_out internals.

v0.5.0 - 2019-12-23

Changed

  • Client::copy_in now returns a Sink rather than taking in a Stream.
  • CopyStream has been renamed to CopyOutStream.
  • Client::copy_in and Client::copy_out no longer take query parameters as PostgreSQL doesn't support parameters in COPY queries.
  • TargetSessionAttrs, SslMode, and ChannelBinding are now true non-exhaustive enums.

Added

  • Added Client::query_opt for queries expected to return zero or one rows.
  • Added binary copy format support to the binary_copy module.
  • Added back query logging.

Removed

  • Removed uuid 0.7 support.

v0.5.0-alpha.2 - 2019-11-27

Changed

  • Upgraded bytes to 0.5.
  • Upgraded tokio to 0.2.
  • The TLS interface uses a trait to obtain channel binding information rather than returning it after the handshake.
  • Changed the value of the timezone property from GMT to UTC.
  • Returned Stream implementations are now !Unpin.

Added

  • Added support for uuid 0.8.
  • Added the column to Row::try_get errors.

v0.5.0-alpha.1 - 2019-10-14

Changed

  • The library now uses std::futures::Future and async/await syntax.
  • Most methods now take &self rather than &mut self.
  • The transaction API has changed to more closely resemble the synchronous API and is significantly more ergonomic.
  • Methods now take &[&(dyn ToSql + Sync)] rather than &[&dyn ToSql] to allow futures to be Send.
  • Methods are now "normal" async functions that no longer do work up-front.
  • Statements are no longer required to be prepared explicitly before use. Methods taking &Statement can now also take &str, and will internally prepare the statement.
  • ToSql now serializes its value into a BytesMut rather than Vec<u8>.
  • Methods that previously returned Streams now return Vec<T>. New *_raw methods still provide a Stream interface.

Added

  • Added the channel_binding=disable/allow/require configuration to control use of channel binding.
  • Added the Client::query_one method to cover the common case of a query that returns exactly one row.

v0.4.0-rc.3 - 2019-06-29

Fixed

  • Significantly improved the performance of query and copy_in.

Changed

  • The items of the stream passed to copy_in must be 'static.

v0.4.0-rc.2 - 2019-03-05

Fixed

  • Fixed Cargo features to actually enable the functionality they claim to.

v0.4.0-rc.1 - 2019-03-05

Changed

  • The client API has been significantly overhauled. It now resembles hyper's, with separate Connection and Client objects. See the crate-level documentation for more details.
  • The TLS connection mode (e.g. prefer) is now part of the connection configuration rather than being passed in separately.
  • The Cargo features enabling ToSql and FromSql implementations for external crates are now versioned. For example, with-uuid is now with-uuid-0_7. This enables us to add support for new major versions of the crates in parallel without breaking backwards compatibility.
  • Upgraded from tokio-core to tokio.

Added

  • Connection string configuration now more fully mirrors libpq's syntax, and supports both URL-style and key-value style strings.
  • FromSql implementations can now borrow from the data buffer. In particular, this means that you can deserialize values as &str. The FromSqlOwned trait can be used as a bound to restrict code to deserializing owned values.
  • Added support for channel binding with SCRAM authentication.
  • Added multi-host support in connection configuration.
  • The client now supports query pipelining, which can be used as a latency hiding measure.
  • While the crate uses tokio by default, the base API can be used with any asynchronous stream type on any reactor.
  • Added support for simple query requests returning row data.

Removed

  • The with-openssl feature has been removed. Use the tokio-postgres-openssl crate instead.
  • The with-rustc_serialize and with-time features have been removed. Use serde and SystemTime or chrono instead.

Older

Look at the release tags for information about older releases.