Problem

When querying concordance search with rare string for large TMs, it can take very long until 20 or even 250 results are found. In a lot of cases it may be necessary to search through the complete TM.

That takes long and may even lead to timeouts.

Solution

Change concordance search in editor and TM-maintenance so that it does only query for 1 result per request. As soon as the request returns, query for the next 1 result in a loop until at least 20 more results returned, than the grid can display at the moment.

If the user scrolls down, query for more results until again at least 20 segments more are loaded, than the grid shows.