@powersync/[email protected]

Minor Changes

• c7d2b53: - [Internal] Updated implementation to use shared WatchedQuery implementation.

• c7d2b53: - Added the ability to limit re-renders by specifying a rowComparator for query results. The useQuery hook will only emit data changes when the data has changed.

  // The data here will maintain previous object references for unchanged items.
  const { data } = useQuery('SELECT * FROM lists WHERE name = ?', ['aname'], {
    rowComparator: {
      keyBy: (item) => item.id,
      compareBy: (item) => JSON.stringify(item)
    }
  });

  • Added the ability to subscribe to an existing instance of a WatchedQuery

  import { useWatchedQuerySubscription } from '@powersync/react';
  
  const listsQuery = powerSync
    .query({
      sql: `SELECT * FROM lists`
    })
    .differentialWatch();
  
  export const ListsWidget = (props) => {
    const { data: lists } = useWatchedQuerySubscription(listsQuery);
  
    return (
      <div>
        {lists.map((list) => (
          <div key={list.id}>{list.name}</div>
        ))}
      </div>
    );
  };

Patch Changes

• 6b38551: Fix a warning about raw tables being used when they're not.
• Updated dependencies [319012e]
• Updated dependencies [c7d2b53]
• Updated dependencies [6b38551]
• Updated dependencies [a1abb15]
  • @powersync/[email protected]