feat(schema/appdata)!: make commit async (#21306)

indexer/postgres/indexer.go

@@ -68,14 +68,14 @@ func StartIndexer(ctx context.Context, logger SqlLogger, config Config) (appdata
 
 			return mm.InitializeSchema(ctx, tx)
 		},
-		Commit: func(data appdata.CommitData) error {
+		Commit: func(data appdata.CommitData) (completionCallback func() error, err error) {
 			err = tx.Commit()
 			if err != nil {
-				return err
+				return nil, err
 			}
 
 			tx, err = db.BeginTx(ctx, nil)
-			return err
+			return nil, err
 		},
 	}, nil
 }

indexer/postgres/tests/init_schema_test.go

@@ -58,7 +58,11 @@ func testInitSchema(t *testing.T, disableRetainDeletions bool, goldenFileName st
 	}))
 
 	require.NotNil(t, listener.Commit)
-	require.NoError(t, listener.Commit(appdata.CommitData{}))
+	cb, err := listener.Commit(appdata.CommitData{})
+	require.NoError(t, err)
+	if cb != nil {
+		require.NoError(t, cb())
+	}
 
 	golden.Assert(t, buf.String(), goldenFileName)
 }