[Web] Flush at the end of each writeLock #77
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stevensJourney
previously approved these changes
Nov 5, 2024
- sqlite_async@0.11.0 - drift_sqlite_async@0.2.0-alpha.4
stevensJourney
approved these changes
Nov 6, 2024
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The IndexedDB-based filesystem used by default for web flushes any changed pages in the background. This can cause data loss: Data that appears to be written (transaction returned successfully) have not actually been persisted to disk.
This now does an explicit
flush()on the filesystem after every write transaction or statement. This can have significant performance overhead for some usage patterns, so this can be disabled on a per-transaction level.The
flush: falseoption is a niche use-case, so only exposed on theWebSqliteConnectionabstract class, and not the more generalSqliteConnection.See an example of using the
flushoption here: powersync-ja/powersync.dart#208