issue_comments

You can use a database query against sqlite_master to find all the FTS tables:

http://sf-trees.datasettes.com/trees-b64f0cb?sql=select+name+from+sqlite_master+where+name+like+%22%25_fts%22+and+type+%3D+%22table%22

select name from sqlite_master where name like "%_fts" and type = "table"

You could then construct a crafty UNION query to get results back from all of those tables at once:

http://sf-trees.datasettes.com/trees-b64f0cb?sql=select+%27PlantType_value_fts%27%2C+rowid%2C+value+from+PlantType_value_fts+where+PlantType_value_fts+match+%3Asearch%0D%0A++union%0D%0Aselect+%27qCareAssistant_value_fts%27%2C+rowid%2C+value+from+qCareAssistant_value_fts+where+qCareAssistant_value_fts+match+%3Asearch%0D%0A++union%0D%0Aselect+%27qCaretaker_value_fts%27%2C+rowid%2C+value+from+qCaretaker_value_fts+where+qCaretaker_value_fts+match+%3Asearch%0D%0A++union%0D%0Aselect+%27qLegalStatus_value_fts%27%2C+rowid%2C+value+from+qLegalStatus_value_fts+where+qLegalStatus_value_fts+match+%3Asearch%0D%0A++union%0D%0Aselect+%27qSiteInfo_value_fts%27%2C+rowid%2C+value+from+qSiteInfo_value_fts+where+qSiteInfo_value_fts+match+%3Asearch%0D%0A++union%0D%0Aselect+%27qSpecies_value_fts%27%2C+rowid%2C+value+from+qSpecies_value_fts+where+qSpecies_value_fts+match+%3Asearch&search=fi%2A

(I'm searching for fi* here to demonstrate wildcards)

The problem, as discussed earlier, is relevance: there's no way to compare the scores you're getting across different tables, so you won't be able to order by anything.

Very cool, thank you.

Using http://search-24ways.herokuapp.com as an example, let's say I want to search all FTS columns in all tables in all databases for the word "web."

Here's a link to the query I'd need to run to search "web" on FTS columns in articles table of the 24ways database.

And here's a link to the JSON version of the above result. I'd like to get the JSON result of that query for each FTS table of each database in my datasette project.

Is it possible in Javascript to automate the construction of query URLs like the one I linked, but for every FTS table in my datasette project?

One interesting way to approach this could be to do it entirely in JavaScript. I've had a lot of success building small apps on top of Datasette's JavaScript API - I wrote up one example here: https://24ways.org/2018/fast-autocomplete-search-for-your-website/

Once #272 is done I'll be adding a plugin hook that allows plugins to define entirely new pages within the Datasette application, which may also be a good way to work on this.