PostgreSQL 10 reports its version as only `major.minor`, so it can’t be parsed with semver. The `server_version_num` setting is a major version followed by a four-digit minor version since version 10, and was a three-digit major version followed by a two-digit minor version before that.
Before this commit, when someone tried to insert a Buffer into an array,
the library would try to escape it (by calling the `escapeElement` on
it), which would fail because buffers don't have a `replace` method.
This adds deprecations in preparation for `pg@7.0`
- deprecate using event emitters on automatically created results from client.query.
- deprecate query.promise() - it should never have been a public method and it's not documented. I need to do better about using _ prefix on private methods in the future.
- deprecate singleton pool on the `pg` object. `pg.connect`, `pg.end`, and `pg.cancel`.
* Remove redundant tests
* Add client connectionString test
Add test to ensure { connectionString } is respected as an argument to the client constructor
* Add test for connection string property
Also fixed some legacy require statements.
* Going red: using a config object creates two pools when missing some params
It should only create a pool in a consistent way, even if some params
are not provided in the first place.
* Delay the pool name generation to make it consistent between calls
* Don't fallback to empty object as config is already defined
* Fix escaping of libpq connection string properties
Fix handlings of libpq connection properties to properly escape single
quotes and backslashes. Previously the values were surrounded in single
quotes which handled whitespace within the property value, but internal
single quotes and backslashes would cause invalid connection strings to
be generated.
* Update expected output in test to be quoted
Update the expect host output in the connection parameter test
to expect it to be surrounded by single quotes.
* Add test for configs with quotes and backslashes
