Search visualization/dashboard listing page with AND instead of OR

[AlonaNadler]

Between 5 to 6 there was a change in the way the search in the visualization and dashboard listing page works.
In the past when searching for a dashboard apache metricbeat it would return results for dashboards with apache and metricbeatin the name/description.
Currently, with the changed behavior it will return any dashboard with apache OR metricbeat, which returns a lot more results,
it makes it difficult to find dashboards when users have dozens of objects. In addition, searching apache AND metricbeat doesn't help only by using +apache +metricbeat

The request is to have a space consider as an AND by default and allowing for explicit searches using an OR . By defualt when users search for apache metricbeat is will return dashbaoards with both terms, and if searching for apache OR metricbeat it returns the current results dashboard with either apache or metricbeat

[alexfrancoeur]

@timroes this was what we discussed earlier today. This may be related to elastic/elasticsearch#25470 and split_queries_on_whitespace (elastic/elasticsearch#30691) may help.

cc: @Bargs @lukasolson

[Bargs]

I believe the saved objects search still uses the simple_query_string query. If so, we should just be able to change the default_operator parameter to AND. However I'm surprised apache AND metricbeat doesn't work, so there might be something else happening that I'm forgetting.

[timroes]

Checked that and talked to the platform team. This is because the new saved object API now searches with OR as the default operator instead of AND. We need to wait for the platform team to either change the default behavior or offer an option in the API to select the default behavior before we can fix that.

cc @mikecote @elastic/kibana-platform

[timroes]

Blocked on #29262

[timroes]

Workaround: There btw is a temporary workaround, which you can do, by using + in front of a word while searching for your dashboard/visualization. Searching for +traffic +alerts should now only reveal you your results containing both terms.

[nreese]

related to #19656

[nreese]

cc @JacobBrandt