diff --git a/src/main/resources/db/liquibase/qbit-alerts/alerts.changelog.sql b/src/main/resources/db/liquibase/qbit-alerts/alerts.changelog.sql
index f17b9cf..cc79de1 100644
--- a/src/main/resources/db/liquibase/qbit-alerts/alerts.changelog.sql
+++ b/src/main/resources/db/liquibase/qbit-alerts/alerts.changelog.sql
@@ -519,3 +519,9 @@ CREATE INDEX ix_alerts_notification_recipient_slack_status ON alerts_notificatio
 -- precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.columns WHERE LOWER(table_name) = 'alerts_notification_preference' AND LOWER(column_name) = 'in_app_min_severity'
 -- comment: Optional minimum severity for in-app notifications (security always arrives).
 ALTER TABLE alerts_notification_preference ADD COLUMN in_app_min_severity VARCHAR(16);
+
+-- changeset qbit-alerts:30
+-- comment: Indexes for the join child columns: a per-record monitor finds its open alerts by (monitor_id, status) on every evaluation (MonitorEvaluator), and the record pages list a type's monitors (alert_type_id) and a group's types (group_id).
+CREATE INDEX IF NOT EXISTS ix_alerts_alert_monitor_id_status ON alerts_alert (monitor_id, status);
+CREATE INDEX IF NOT EXISTS ix_alerts_monitor_alert_type_id ON alerts_monitor (alert_type_id);
+CREATE INDEX IF NOT EXISTS ix_alerts_type_group_id ON alerts_type (group_id);
diff --git a/src/test/java/com/kingsrook/qbits/alerts/AlertsQBitProducerTest.java b/src/test/java/com/kingsrook/qbits/alerts/AlertsQBitProducerTest.java
index e89296a..dcb5eaf 100644
--- a/src/test/java/com/kingsrook/qbits/alerts/AlertsQBitProducerTest.java
+++ b/src/test/java/com/kingsrook/qbits/alerts/AlertsQBitProducerTest.java
@@ -413,4 +413,35 @@ class AlertsQBitProducerTest extends BaseAlertsTest
          com.kingsrook.qqq.backend.core.actions.permissions.TablePermissionSubType.INSERT)).isTrue();
    }
 
+
+
+   /*******************************************************************************
+    ** Every one-to-many join's child column leads an index in the shipped
+    ** changelog, so record pages, child lists and per-parent lookups do not scan
+    ** the child table.
+    *******************************************************************************/
+   @Test
+   void testJoinChildColumnsAreIndexed() throws Exception
+   {
+      String changelog;
+      try(InputStream in = getClass().getClassLoader().getResourceAsStream("db/liquibase/qbit-alerts/alerts.changelog.sql"))
+      {
+         changelog = new String(in.readAllBytes(), StandardCharsets.UTF_8);
+      }
+      for(com.kingsrook.qqq.backend.core.model.metadata.joins.QJoinMetaData join : AlertsTableMetaDataHelper.buildJoins())
+      {
+         String table  = join.getRightTable();
+         String column = join.getJoinOns().get(0).getRightField().replaceAll("([a-z0-9])([A-Z])", "$1_$2").toLowerCase();
+         java.util.regex.Pattern index = java.util.regex.Pattern.compile("(?i)CREATE (UNIQUE )?INDEX (IF NOT EXISTS )?\\w+ ON " + table + " \\(" + column + "[,)]");
+         java.util.regex.Pattern unique = java.util.regex.Pattern.compile("(?is)CREATE TABLE IF NOT EXISTS " + table + " \\((?:(?!\\);).)*UNIQUE \\(" + column + "[,)]");
+         //////////////////////////////////////////////////////////////////////
+         // alerts_delivery was renamed from the RC.1 alerts_notification;   //
+         // its indexes came along by ALTER INDEX ... RENAME TO ix_<t>_<col> //
+         //////////////////////////////////////////////////////////////////////
+         boolean renamed = changelog.contains("RENAME TO ix_" + table + "_" + column + ";") || changelog.contains("RENAME TO ix_" + table + "_" + column + "_");
+         assertThat(index.matcher(changelog).find() || unique.matcher(changelog).find() || renamed)
+            .as("index leading with " + table + "." + column + " for join " + join.getName())
+            .isTrue();
+      }
+   }
 }