Support an array of sliceId for setIndexDefinition?

Is your feature request related to a problem? Please describe. We were trying to create indexes for events object by date. So that if we look for a specific date then it will return the collection of events that cover that given date. Event { start: Date, end: Date, ...}

indexes.setIndexDefinition( 
    'eventsByDate', 
    'events',
    (getCell) =>  ['2022-09-19', '2022-09-20'] // eg. return array of ISO date from this code: eachDayOfInterval(getCell('from'), getCell('to')).map((date) => formatISO(date))
);

indexes.getSliceRowIds('eventsByDate', '2022-09-19') // return events that cover this date 
indexes.getSliceRowIds('eventsByDate', '2022-09-20')  // return events that cover this date  

Describe the solution you’d like I think if the setIndexDefinition could support having sliceId array to index rows then it’s more flexible.

Describe alternatives you’ve considered We are not sure of the best way to solve this with Tinybase without manually indexing rows by listening to the row-adding event.

Additional context N/A

[jamesgpearce]

Also check out https://beta.tinybase.org/demos/word-frequencies/ - I’m pretty pleased with how this worked out. Thank you for the inspiration!

[tienle]

So far, it works great. Thanks for the update @jamesgpearce 🚀