Added DatabaseIntrospection.index_default_access_method hook on the PostgreSQL backend.
Added DatabaseIntrospection.index_default_access_method hook on the PostgreSQL backend.

This hook is for the CockroachDB backend where the name is 'prefix'.
felixxm/django,elena/django,ghickman/django,dsanders11/django,manhhomienbienthuy/django,felixxm/django,dsanders11/django,pauloxnet/django,pauloxnet/django,ghickman/django,auvipy/django,freakboy3742/django,pauloxnet/django,auvipy/django,takis/django,wkschwartz/django,koordinates/django,blighj/django,django/django,blighj/django,elena/django,shaib/django,freakboy3742/django,pauloxnet/django,felixxm/django,apollo13/django,manhhomienbienthuy/django,monetate/django,django/django,shaib/django,elena/django,koordinates/django,felixxm/django,solarissmoke/django,blighj/django,adamchainz/django,atul-bhouraskar/django,apollo13/django,monetate/django,monetate/django,atul-bhouraskar/django,shaib/django,MarkusH/django,wkschwartz/django,adamchainz/django,solarissmoke/django,blighj/django,wkschwartz/django,django/django,takis/django,rsalmaso/django,ghickman/django,manhhomienbienthuy/django,takis/django,freakboy3742/django,atul-bhouraskar/django,MarkusH/django,shaib/django,monetate/django,rsalmaso/django,solarissmoke/django,MarkusH/django,auvipy/django,adamchainz/django,solarissmoke/django,auvipy/django,takis/django,apollo13/django,MarkusH/django,elena/django,manhhomienbienthuy/django,django/django,koordinates/django,adamchainz/django,apollo13/django,koordinates/django,ghickman/django,dsanders11/django,rsalmaso/django,wkschwartz/django,rsalmaso/django,dsanders11/django,atul-bhouraskar/django