Autocomplete in the query bar

[lukasolson]

As part of #10789, we'd like to expand the utility of the search bar to have autocomplete. While the current query bar gives suggestions based on your search history, the autocomplete that we'd like to add is more contextual, giving you suggestions based on your actual data.

#12282 outlines how the new Kibana query language might work. As we decide more about how this language will work, we can explore more ways to intelligently offer contextual suggestions as the user is typing in the search bar.

With the introduction of filter editors, we've added the ability for autocomplete based on field names, operators, and values from the indices. This functionality can be added directly into the search bar as we decide more about the query language itself.

Awhile back we built a prototype demoing how something like this could work (the actual design will be quite different):

[alexfrancoeur]

Is this blocked by #12692?

[lukasolson]

Is this blocked by #12692?

We can move forward with this without having a definite solution for #12692. We can at least autocomplete query syntax and fields.

[timroes]

Autocompletions are always a bit complex when it comes to accessibility. I made the auto completion for timelion accessible in #13531. Maybe that helps when it comes to auto completion accessibility, also feel free to ping me if you need any help.

[Bargs]

Something to think about, I feel like we might be able to make the implicit ANDs more obvious with autocomplete as well: #13563