Merge pull request #781 from Altinity/780-document-differences-betwee…

…n-sink-connector-lightweight-and-materializedpostgresql

Added single.threaded flag to Mariadb test to validate replication in…

sink-connector-lightweight/src/test/java/com/altinity/clickhouse/debezium/embedded/MariaDBIT.java

@@ -31,7 +31,7 @@
  * Integration test to validate support for replication of multiple databases.
  */
 @Testcontainers
-@DisplayName("Integration Test that validates basic replication of MariaDB databases")
+@DisplayName("Integration Test that validates basic replication of MariaDB databases in single threaded mode")
 public class MariaDBIT
 {
 
@@ -66,7 +66,7 @@ public void startContainers() throws InterruptedException {
         clickHouseContainer.start();
     }
 
-    @DisplayName("Integration Test that validates handle of JSON data type from MySQL")
+    @DisplayName("Integration Test that validates replication of MariaDB databases in single.threaded mode")
     @Test
     public void testMultipleDatabases() throws Exception {
 
@@ -77,6 +77,7 @@ public void testMultipleDatabases() throws Exception {
         // Set the list of databases captured.
         props.put("database.whitelist", "employees,test_db,test_db2");
         props.put("database.include.list", "employees,test_db,test_db2");
+        props.put("single.threaded", true);
 
         ExecutorService executorService = Executors.newFixedThreadPool(1);
         executorService.execute(() -> {