Support use nvarchar for all varchar columns when using mssql (#12269)
* Support use nvarchar for all varchar columns when using mssql
* fix lint
* Change DEFAULT_VARCHAR to nvarchar
* Remove the config for default varchar since it's unnecessary
Add support for database schema in PostgreSQL (#8819)
* Add support for database schema
* Require setting search_path for the db user
* Add schema setting to admin/config.tmpl
* Use a schema different from default for psql tests
* Update postgres scripts to use custom schema
* Update to xorm/core 0.7.3 and xorm/xorm c37aff9b3a
* Fix migration test
Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Lunny Xiao
guillep2k
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