* Modify test suite to test #1602
We shouldn’t be testing the “default” client class. Replace any
usages with postgresql
* Simplify knex.raw, deprecate global Knex.raw usage
* Remove unused bluebird shim
* Remove old / unused test comments
* Don't capture Pool2 error event
* Fix pg string escaping & parameterization #1602, #1548
Only left alone ones in `test/tape/transactions.js` which would just
cause unnecessary conflicts and get cleaned up by separate pull
request #1257 anyway.
Adds ?? for interpolating identifiers in raw
statements. Also adds raw(sql, obj) for
named :key syntax. Alternatively, 🔑
(trailing colon) may be used to specify an
identifier as a parameter.
