* test(QueryBuilder): add test for countDistinct with multiple columns
* test: add integration test for countDistinct with multiple columns
* feat(QueryBuilder): support multiple columns for countDistinct
* feat(QueryBuilder): support object alias notation for aggregate methods
i.e. `count`, `countDistinct`, `max`, `min`, `avg`, `avgDistinct`, `sum`, `sumDistinct`
* test: fix integration tests for countDistinct
* fix(QueryBuilder): fix countDistinct formatting with multiple columns
* refactor(QueryBuilder): add _aggregate from helpers
* fix(QueryCompiler): only use parens for distinct with postgres
* test(QueryBuilder): remove unsupported tests
for count with multiple distinct columns in databases where this is
not supported
* refactor(QueryBuilder): improve readability
* Add a Redshift dialect that inherits from Postgres.
* Turn .index() and .dropIndex() into no-ops with warnings in the Redshift dialect.
* Update the Redshift dialect to be compatible with master.
* Update package.json
* Disable liftoff cli
* Remove the CLI
* Add lib to the repo
* Allow the escaping of named bindings.
* Update dist
* Update the Redshift dialect’s instantiation of the query and column compilers.
* Update the distribution
* Fix a merge conflict
* Take lib back out
* Trying to bring back in line with tgreisser/knex
* Add npm 5 package-lock
* Bring cli.js back in line
* Bring cli.js back in line
* Progress commit on redshift integration tests
* Revert "Progress commit on redshift integration tests"
This reverts commit 207e31635c638853dec54ce0580d34559ba5a54c.
* Progress commit
* Working not null on primary columns in createTable
* Working redshift unit tests
* Working unit and integration tests, still need to fix migration tests
* Brought datatypes more in line with what redshift actually supports
* Added query compiler unit tests
* Add a hacky returning clause for redshift ugh
* Working migration integration tests
* Working insert integration tests
* Allow multiple insert returning values
* Working select integration tests
* Working join integration tests
* Working aggregate integration tests
* All integration suite tests working
* Put docker index for reconnect tests back
* Redshift does not support insert...returning, there does not seem to be a way around that, therefore accept it and test accordingly
* Leave redshift integration tests in place, but do not run them by default
* Fix mysql order by test
* Fix more tests
* Change test db name to knex_test for consistency
* Address PR comments
* Make postgres client wrapIdentifierImpl independent of `this` context
* Also fixes a bug where only single digit indices were accepted.
* add customWrapIdentifier helper for client
* customWrapIdentifier is one more level of abstraction for the wrapIdentifier "pipeline"
that allows the custom wrapIdentifier to be called without calling the `wrapIdentifierImpl`
* bufix: use custom wrapIdentifier in columnInfo. fixes#2402
* adding support for ONLY keyword for PostgreSQL as an optional flag of from() and into() through table(tableName, only)
* passing only parameter from default function was missing
* changing only option to options object with only key
* better style per @wubzz suggestion
