Action Cable: support channel_prefix for Postgres subscription adapter #35276
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yahonda
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…st (NameError) ``` $ bundle exec ruby -w -Itest test/subscription_adapter/postgresql_test.rb Traceback (most recent call last): 1: from test/subscription_adapter/postgresql_test.rb:8:in `<main>' test/subscription_adapter/postgresql_test.rb:10:in `<class:PostgresqlAdapterTest>': uninitialized constant PostgresqlAdapterTest::ChannelPrefixTest (NameError) ``` https://travis-ci.org/rails/rails/jobs/493530508 Follow up rails#35276
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Summary
The same DB could be used by multiple apps (or engines, see #34714), thus we need a way to avoid naming conflicts.
The functionality has been already implemented for Redis (#27425), we only need to include the module.