[quinnj-bot]

Why

Ships the Nov 5 fixes to users: #42 (closes #41), #45 (fixes #44) and #33.

Bumps the version to 2.6.0. It is a minor release because validate_dsn is new public API. Included since 2.5.0:

Added

• Postgres.validate_dsn(dsn) returns nothing for a connection string that parse_dsn accepts. Otherwise it returns a Postgres.ConnectionParameterError with the failing parameter (key), a reason (:unknown_key, :invalid_value, :unsupported_ignored or :malformed) and the message parse_dsn would throw, so a caller no longer has to match on error text. It is public but not exported. (Add validate_dsn for structured connection-parameter errors #33)

Fixed

• DBInterface.close! now sends the protocol's Terminate message before it closes the socket, as libpq does. The server no longer logs "unexpected EOF on client connection" when a connection is closed normally. (Send Terminate before closing a connection #42)
• Postgres.cancel_query! now cancels a statement after an InterruptException closed the connection while that statement ran. It used to throw "cannot cancel query: connection not open", and the statement kept running on the server. On a connection closed with close!, it now sends a request that the server ignores instead of throwing. (Let cancel_query! cancel a statement after an interrupt closed the socket #45)

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