diff --git a/go/vt/sidecardb/schema/vdiff/vdiff_log.sql b/go/vt/sidecardb/schema/vdiff/vdiff_log.sql
index bedb7824295..7912abe823a 100644
--- a/go/vt/sidecardb/schema/vdiff/vdiff_log.sql
+++ b/go/vt/sidecardb/schema/vdiff/vdiff_log.sql
@@ -16,9 +16,10 @@ limitations under the License.
 
 CREATE TABLE IF NOT EXISTS vdiff_log
 (
-    `id`         int(11)   NOT NULL AUTO_INCREMENT,
-    `vdiff_id`   int(11)   NOT NULL,
-    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    `message`    text      NOT NULL,
-    PRIMARY KEY (`id`)
+    `id`         bigint(20) NOT NULL AUTO_INCREMENT,
+    `vdiff_id`   bigint(20) NOT NULL,
+    `created_at` timestamp  NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `message`    text       NOT NULL,
+    PRIMARY KEY (`id`),
+    KEY `vdiff_id_idx` (`vdiff_id`)
 ) ENGINE = InnoDB CHARSET = utf8mb4
diff --git a/go/vt/sidecardb/schema/vdiff/vdiff_table.sql b/go/vt/sidecardb/schema/vdiff/vdiff_table.sql
index 2296398e430..20fda26b81e 100644
--- a/go/vt/sidecardb/schema/vdiff/vdiff_table.sql
+++ b/go/vt/sidecardb/schema/vdiff/vdiff_table.sql
@@ -16,7 +16,7 @@ limitations under the License.
 
 CREATE TABLE IF NOT EXISTS vdiff_table
 (
-    `vdiff_id`      varchar(64)    NOT NULL,
+    `vdiff_id`      bigint(20)     NOT NULL,
     `table_name`    varbinary(128) NOT NULL,
     `state`         varbinary(64)           DEFAULT NULL,
     `lastpk`        varbinary(2000)         DEFAULT NULL,