#1814 - Support older MySQL 5.5

pom.xml

@@ -118,7 +118,7 @@
     <dependency>
       <groupId>io.ebean</groupId>
       <artifactId>ebean-annotation</artifactId>
-      <version>4.12</version>
+      <version>4.13</version>
     </dependency>
 
     <dependency>
@@ -330,7 +330,7 @@
       <plugin>
         <groupId>io.ebean</groupId>
         <artifactId>ebean-maven-plugin</artifactId>
-        <version>11.44.1</version>
+        <version>11.45.1</version>
         <executions>
           <execution>
             <id>test</id>

src/main/java/io/ebean/config/dbplatform/mysql/MySql55Platform.java

@@ -0,0 +1,14 @@
+package io.ebean.config.dbplatform.mysql;
+
+import io.ebean.annotation.Platform;
+import io.ebean.config.dbplatform.DbPlatformType;
+import io.ebean.config.dbplatform.DbType;
+
+public class MySql55Platform extends MySqlPlatform {
+
+  public MySql55Platform() {
+    super();
+    this.platform = Platform.MYSQL55;
+    dbTypeMap.put(DbType.TIMESTAMP, new DbPlatformType("datetime"));
+  }
+}

src/main/java/io/ebeaninternal/dbmigration/DefaultDbMigration.java

@@ -14,6 +14,7 @@ import io.ebean.config.dbplatform.db2.DB2Platform;
 import io.ebean.config.dbplatform.h2.H2Platform;
 import io.ebean.config.dbplatform.hana.HanaPlatform;
 import io.ebean.config.dbplatform.hsqldb.HsqldbPlatform;
+import io.ebean.config.dbplatform.mysql.MySql55Platform;
 import io.ebean.config.dbplatform.mysql.MySqlPlatform;
 import io.ebean.config.dbplatform.nuodb.NuoDbPlatform;
 import io.ebean.config.dbplatform.oracle.OraclePlatform;
@@ -787,6 +788,8 @@ public class DefaultDbMigration implements DbMigration {
         return new HsqldbPlatform();
       case POSTGRES:
         return new PostgresPlatform();
+      case MYSQL55:
+        return new MySql55Platform();
       case MYSQL:
         return new MySqlPlatform();
       case ORACLE:

src/main/java/io/ebeaninternal/server/core/DatabasePlatformFactory.java

@@ -8,6 +8,7 @@ import io.ebean.config.dbplatform.db2.DB2Platform;
 import io.ebean.config.dbplatform.h2.H2Platform;
 import io.ebean.config.dbplatform.hana.HanaPlatform;
 import io.ebean.config.dbplatform.hsqldb.HsqldbPlatform;
+import io.ebean.config.dbplatform.mysql.MySql55Platform;
 import io.ebean.config.dbplatform.mysql.MySqlPlatform;
 import io.ebean.config.dbplatform.nuodb.NuoDbPlatform;
 import io.ebean.config.dbplatform.oracle.OraclePlatform;
@@ -82,6 +83,9 @@ public class DatabasePlatformFactory {
     if (dbName.equals("mysql")) {
       return new MySqlPlatform();
     }
+    if (dbName.equals("mysql55")) {
+      return new MySql55Platform();
+    }
     if (dbName.equals("postgres") || dbName.equals("postgres9")) {
       return new PostgresPlatform();
     }
@@ -147,15 +151,16 @@ public class DatabasePlatformFactory {
    */
   private DatabasePlatform byDatabaseMeta(DatabaseMetaData metaData, Connection connection) throws SQLException {
 
-    String dbProductName = metaData.getDatabaseProductName();
-    dbProductName = dbProductName.toLowerCase();
+    String dbProductName = metaData.getDatabaseProductName().toLowerCase();
+    final int majorVersion = metaData.getDatabaseMajorVersion();
+    final int minorVersion = metaData.getDatabaseMinorVersion();
 
     if (dbProductName.contains("oracle")) {
       return new OraclePlatform();
     } else if (dbProductName.contains("microsoft")) {
       throw new IllegalArgumentException("For SqlServer please explicitly choose either sqlserver16 or sqlserver17 as the platform via ServerConfig.setDatabasePlatformName. Refer to issue #1340 for more details");
     } else if (dbProductName.contains("mysql")) {
-      return new MySqlPlatform();
+      return mysqlVersion(majorVersion, minorVersion);
     } else if (dbProductName.contains("h2")) {
       return new H2Platform();
     } else if (dbProductName.contains("hsql database engine")) {
@@ -180,6 +185,13 @@ public class DatabasePlatformFactory {
     return new DatabasePlatform();
   }
 
+  private DatabasePlatform mysqlVersion(int majorVersion, int minorVersion) {
+    if (majorVersion <= 5 && minorVersion <= 5) {
+      return new MySql55Platform();
+    }
+    return new MySqlPlatform();
+  }
+
   /**
    * Use a select version() query as it could be Postgres or CockroachDB.
    */

src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java

@@ -514,7 +514,7 @@ public class InternalConfiguration {
 
     String tz = serverConfig.getDataTimeZone();
     if (tz == null) {
-      if (getPlatform() == Platform.MYSQL) {
+      if (isMySql(getPlatform())) {
         return new LocalDataTimeZone();
       }
       return new NoDataTimeZone();
@@ -526,6 +526,10 @@ public class InternalConfiguration {
     }
   }
 
+  private boolean isMySql(Platform platform) {
+     return platform == Platform.MYSQL || platform == Platform.MYSQL55;
+  }
+
   public DataTimeZone getDataTimeZone() {
     return dataTimeZone;
   }

src/main/java/io/ebeaninternal/server/core/PlatformDdlBuilder.java

@@ -30,6 +30,7 @@ public class PlatformDdlBuilder {
         return new H2Ddl(platform);
       case DB2:
         return new DB2Ddl(platform);
+      case MYSQL55:
       case MYSQL:
         return new MySqlDdl(platform);
       case HSQLDB:

src/main/java/io/ebeaninternal/server/expression/platform/DbExpressionHandlerFactory.java

@@ -17,6 +17,7 @@ public class DbExpressionHandlerFactory {
         return new H2DbExpression();
       case POSTGRES:
         return new PostgresDbExpression();
+      case MYSQL55:
       case MYSQL:
         return new MySqlDbExpression();
       case ORACLE:

src/main/java/io/ebeaninternal/server/query/CQueryBuilder.java

@@ -141,7 +141,7 @@ class CQueryBuilder {
       if (dbPlatform.isSupportsDeleteTableAlias()) {
         // delete from table <alias> ...
         return aliasReplace(buildSql("delete", request, predicates, sqlTree).getSql(), alias);
-      } else if (dbPlatform.getPlatform() == Platform.MYSQL) {
+      } else if (isMySql(dbPlatform.getPlatform())) {
         return aliasReplace(buildSql("delete " + alias, request, predicates, sqlTree).getSql(), alias);
       } else {
         // simple - delete from table ...
@@ -155,6 +155,10 @@ class CQueryBuilder {
     return sql;
   }
 
+  private boolean isMySql(Platform platform) {
+    return platform == Platform.MYSQL || platform == Platform.MYSQL55;
+  }
+
   private String alias(String rootTableAlias) {
     return (rootTableAlias == null) ? "t0" : rootTableAlias;
   }

src/test/java/io/ebean/BaseTestCase.java

@@ -183,7 +183,7 @@ public abstract class BaseTestCase {
   }
 
   public boolean isMySql() {
-    return Platform.MYSQL == platform();
+    return Platform.MYSQL == platform() || Platform.MYSQL55 == platform();
   }
 
   public boolean isHana() {

src/test/java/io/ebeaninternal/dbmigration/DbMigrationGenerateTest.java

@@ -49,6 +49,7 @@ public class DbMigrationGenerateTest {
     migration.addPlatform(Platform.H2, "h2");
     migration.addPlatform(Platform.HSQLDB, "hsqldb");
     migration.addPlatform(Platform.MYSQL, "mysql");
+    migration.addPlatform(Platform.MYSQL55, "mysql55");
     migration.addPlatform(Platform.POSTGRES, "postgres");
     migration.addPlatform(Platform.ORACLE, "oracle");
     migration.addPlatform(Platform.SQLITE, "sqlite");