postgresql2 0.3.4+4

A temporary fork of Greg's PostgreSQL driver (xxgreg/postgresql) using conserved substitution respecting strings and @@ operators. also optimizing the pool implementation aggressivly.

Version 0.3.4

• Update broken crypto dependency.

Version 0.3.3

• Fix #73 Properly encode/decode connection uris. Thanks to Martin Manev.
• Permit connection without a password. Thanks to Jirka Daněk.

Version 0.3.2

• Improve handing of datetimes. Thanks to Joe Conway.
• Remove manually cps transformed async code.
• Fix #58: Establish connections concurrently. Thanks to Tom Yeh.
• Fix #67: URI encode db name so spaces can be used in db name. Thanks to Chad Schwendiman.
• Fix #69: Empty connection pool not establishing connections.

Version 0.3.1+1

• Expose column information via row.getColumns(). Credit to Jesper Håkansson for this change.

Version 0.3.0

• A new connection pool with more configuration options.
• Support for json and timestamptz types.
• Utc time zone support.
• User customisable type conversions.
• Improved error handling.
• Connection.onClosed has been removed.
• Some api has been renamed, the original names are still functional but marked as deprecated.
  • import 'package:postgresql/postgresql_pool.dart' => import 'package:postgresql/pool.dart'
  • Pool.destroy() => Pool.stop()
  • The constants were upper case and int type. Now typed and lower camel case to match the style guide.
  • Connection.unhandled => Connection.messages
  • Connection.transactionStatus => Connection.transactionState

Thanks to Tom Yeh and Petar Sabev for their helpful feedback.