When attempting to upgrade a Postgres RDS instance from 9.5.x to 9.6.1, the stack updates the DBParameterGroup and OptionGroup, but then proceeds to fail on AWS::RDS::DBInstance with the following error:
The Parameter Group stage-classchirp-com-shortymasterdb-parametergroup-z95umv2qmwhi with DBParameterGroupFamily postgres9.5 cannot be used for this instance. Please use a Parameter Group with DBParameterGroupFamily postgres9.6
This is despite having the family set to postgres9.6.
When attempting to upgrade a Postgres RDS instance from 9.5.x to 9.6.1, the stack updates the DBParameterGroup and OptionGroup, but then proceeds to fail on AWS::RDS::DBInstance with the following error:
The Parameter Group stage-classchirp-com-shortymasterdb-parametergroup-z95umv2qmwhi with DBParameterGroupFamily postgres9.5 cannot be used for this instance. Please use a Parameter Group with DBParameterGroupFamily postgres9.6This is despite having the family set to postgres9.6.