feat: Finish wiring up WAL plugin with trigger #25781
Merged
+132
−9
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This updates the WAL so that it can have new file notifiers added that will get updated when the wal flushes. The processing engine now implements the WALNotifier trait.
I've updated the CLI test for creating a trigger to run and end-to-end test that defines a plugin, creates a trigger, writes data into the database, triggering the plugin, which writes summary statistics back into the database in a different table. The test queries the destination table to confirm that the plugin worked.