@powersync/[email protected]

Minor Changes

• c7d2b53: [Potentially breaking change] The useQuery hook results are now explicitly defined as readonly. These values should not be mutated.

  • 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

  <script setup>
  import { useWatchedQuerySubscription } from '@powersync/vue';
  
  const listsQuery = powerSync
    .query({
      sql: `SELECT * FROM lists`
    })
    .differentialWatch();
  
  const { data, isLoading, isFetching, error } = useWatchedQuerySubscription(listsQuery);
  </script>
  
  <template>
    <div v-if="isLoading">Loading...</div>
    <div v-else-if="isFetching">Updating results...</div>
  
    <div v-if="error">{{ error }}</div>
    <ul v-else>
      <li v-for="l in data" :key="l.id">{{ l.name }}</li>
    </ul>
  </template>

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

Patch Changes

• Updated dependencies [319012e]
• Updated dependencies [c7d2b53]
• Updated dependencies [6b38551]
• Updated dependencies [a1abb15]
  • @powersync/[email protected]