ignore_cache config doesn't seem to properly work

[MerciMax]

Hi !

We want to implement db-query-matchers to test our endpoints to avoid performance regressions.

Unfortunately, given the context where they're launched, some tests have different query counts:

• If I run the whole context
• If I run the whole test test suite
• If I run only one test

Obviously, we don't want to implement a flakky test into our test suite 😄

We tried to implement a DataBaseCleaner strategy by cleaning the database after each test, but it doesn't fix the problem.

Here is the config we have:

# To avoid cache problems counting queries in specs, see :
# https://github.com/civiccc/db-query-matchers#configuration
DBQueryMatchers.configure do |config|
  config.ignore_cached = true
  config.schemaless = true
end

Here is the non working database cleaning strategy

  context 'use db query matcher to avoid unnecessary queries' do
    before(:each) do
      DatabaseCleaner.strategy = :transaction
      DatabaseCleaner.start
    end

    after(:each) do
      DatabaseCleaner.clean
    end

Do you have any insights on this particular issue ? Is this some postgres / active record magic with hidden cached queries ?