Migration scripts for mariadb

ebean-ddl-generator/src/main/java/io/ebeaninternal/dbmigration/DefaultDbMigration.java

@@ -190,33 +190,28 @@ public class DefaultDbMigration implements DbMigration {
       return;
     }
     String[] tmp = StringHelper.splitNames(platforms);
-    for (String platformName : tmp) {
-        DatabasePlatform dbPlatform;
+    for (String plat : tmp) {
+      DatabasePlatform dbPlatform;
+      String platformName = plat;
+      String platformPrefix = null;
+      int pos = plat.indexOf('=');
+      if (pos != -1) {
+        platformName = plat.substring(0, pos);
+        platformPrefix = plat.substring(pos + 1);
+      }
+
       if (platformName.indexOf('.') == -1) {
         // parse platform as enum value
         Platform platform = Enum.valueOf(Platform.class, platformName.toUpperCase());
-        dbPlatform =platform(platform);
+        dbPlatform = platform(platform);
       } else {
         // parse platform as class
         dbPlatform = (DatabasePlatform) config.getClassLoadConfig().newInstance(platformName);
       }
+      if (platformPrefix == null) {
+        platformPrefix = dbPlatform.getPlatform().name().toLowerCase();
+      }
 
-      // Special wrapper, that allows us to define properties like:
-      // migration.SERVERNAME.PLATFORMNAME.key
-      PropertiesWrapper platformProps = new PropertiesWrapper("migration", config.getName(), config.getProperties(), config.getClassLoadConfig()) {
-        @Override
-        public String get(String key, String defaultValue) {
-         String ret = super.get(platformName + "." + key, null);
-         if (ret == null) {
-           ret = super.get(key, defaultValue);
-         }
-         return ret;
-        }
-      };
-      String platformPrefix = platformProps.get("prefix", dbPlatform.getPlatform().name().toLowerCase());
-      PlatformConfig platformConfig = new PlatformConfig();
-      platformConfig.loadSettings(platformProps);
-      dbPlatform.configure(platformConfig);
       addDatabasePlatform(dbPlatform, platformPrefix);
     }
   }

ebean-ddl-generator/src/main/resources/io/ebeaninternal/dbmigration/builtin-extra-ddl.xml

@@ -112,7 +112,7 @@ BEGIN
 END
 GO
 </ddl-script>
-<ddl-script name="create procs" platforms="mysql" init="true">-- Inital script to create stored procedures etc for mysql platform
+<ddl-script name="create procs" platforms="mysql mariadb" init="true">-- Inital script to create stored procedures etc for mysql platform
 DROP PROCEDURE IF EXISTS usp_ebean_drop_foreign_keys;
 
 delimiter $$

ebean-test/src/test/java/misc/migration/v1_1/EHistory2.java

@@ -2,9 +2,11 @@ package misc.migration.v1_1;
 
 
 import io.ebean.annotation.DbDefault;
+import io.ebean.annotation.DbMigration;
 import io.ebean.annotation.History;
 import io.ebean.annotation.HistoryExclude;
 import io.ebean.annotation.NotNull;
+import io.ebean.annotation.Platform;
 
 import javax.persistence.Entity;
 import javax.persistence.Id;
@@ -20,6 +22,13 @@ public class EHistory2 {
   Integer id;
 
   @NotNull
+  // see: https://mariadb.com/de/resources/blog/use-cases-for-mariadb-data-versioning/
+  @DbMigration(preAlter = {
+      "SET @@system_versioning_alter_history = 1",
+      "update ${table} set ${column} = 'unknown' where ${column} is null"}, platforms = Platform.MARIADB)
+  
+  // other platforms
+  @DbMigration(preAlter =  "update ${table} set ${column} = 'unknown' where ${column} is null")
   @DbDefault("unknown")
   String testString;
 

ebean-test/src/test/resources/ebean.properties

@@ -214,9 +214,10 @@ ebean.migrationtest.migration.run=false
 ebean.migrationtest.migration.includeIndex=true
 ebean.migrationtest.migration.generateInit=true
 ebean.migrationtest.migration.generatePendingDrop=auto
-ebean.migrationtest.migration.platforms=db2luw,h2,hsqldb,mysql,mysql55,postgres,oracle,sqlite,sqlserver17,hana 
+ebean.migrationtest.migration.platforms=db2luw,h2,hsqldb,mysql,mysql55,mariadb,postgres,oracle,sqlite,sqlserver17,hana 
 #migration.migrationtest.db2luw.prefix=db2
 #migration.migrationtest.sqlserver17.prefix=sqlserver
+dbmigration.platform.mariadb.useMigrationStoredProcedures=true
 
 
 # need to generate unique statements to prevent them from being filtered out as duplicates by the DdlRunner

ebean-test/src/test/resources/migrationtest/dbinit/mariadb/1.4.sql

@@ -0,0 +1,176 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+create table migtest_ckey_assoc (
+  id                            integer auto_increment not null,
+  assoc_one                     varchar(255),
+  constraint pk_migtest_ckey_assoc primary key (id)
+);
+
+create table migtest_ckey_detail (
+  id                            integer auto_increment not null,
+  something                     varchar(255),
+  constraint pk_migtest_ckey_detail primary key (id)
+);
+
+create table migtest_ckey_parent (
+  one_key                       integer not null,
+  two_key                       varchar(127) not null,
+  name                          varchar(255),
+  version                       integer not null,
+  constraint pk_migtest_ckey_parent primary key (one_key,two_key)
+);
+
+create table migtest_fk_cascade (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_cascade primary key (id)
+);
+
+create table migtest_fk_cascade_one (
+  id                            bigint auto_increment not null,
+  constraint pk_migtest_fk_cascade_one primary key (id)
+);
+
+create table migtest_fk_none (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_none primary key (id)
+);
+
+create table migtest_fk_none_via_join (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_none_via_join primary key (id)
+);
+
+create table migtest_fk_one (
+  id                            bigint auto_increment not null,
+  constraint pk_migtest_fk_one primary key (id)
+);
+
+create table migtest_fk_set_null (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_set_null primary key (id)
+);
+
+create table migtest_e_basic (
+  id                            integer auto_increment not null,
+  status                        varchar(1),
+  status2                       varchar(1) default 'N' not null,
+  name                          varchar(127),
+  description                   varchar(127),
+  some_date                     datetime(6),
+  old_boolean                   tinyint(1) default 0 not null,
+  old_boolean2                  tinyint(1),
+  eref_id                       integer,
+  indextest1                    varchar(127),
+  indextest2                    varchar(127),
+  indextest3                    varchar(127),
+  indextest4                    varchar(127),
+  indextest5                    varchar(127),
+  indextest6                    varchar(127),
+  user_id                       integer default 23 not null,
+  constraint uq_migtest_e_basic_indextest2 unique (indextest2),
+  constraint uq_migtest_e_basic_indextest6 unique (indextest6),
+  constraint pk_migtest_e_basic primary key (id)
+);
+
+create table migtest_e_enum (
+  id                            integer auto_increment not null,
+  test_status                   varchar(1),
+  constraint pk_migtest_e_enum primary key (id)
+);
+
+create table migtest_e_history (
+  id                            integer auto_increment not null,
+  test_string                   bigint,
+  constraint pk_migtest_e_history primary key (id)
+);
+
+create table migtest_e_history2 (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  obsolete_string1              varchar(255),
+  obsolete_string2              varchar(255),
+  constraint pk_migtest_e_history2 primary key (id)
+);
+
+create table migtest_e_history3 (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  constraint pk_migtest_e_history3 primary key (id)
+);
+
+create table migtest_e_history4 (
+  id                            integer auto_increment not null,
+  test_number                   integer,
+  constraint pk_migtest_e_history4 primary key (id)
+);
+
+create table migtest_e_history5 (
+  id                            integer auto_increment not null,
+  test_number                   integer,
+  constraint pk_migtest_e_history5 primary key (id)
+);
+
+create table migtest_e_history6 (
+  id                            integer auto_increment not null,
+  test_number1                  integer,
+  test_number2                  integer default 7 not null,
+  constraint pk_migtest_e_history6 primary key (id)
+);
+
+create table migtest_e_ref (
+  id                            integer auto_increment not null,
+  name                          varchar(127) not null,
+  constraint uq_migtest_e_ref_name unique (name),
+  constraint pk_migtest_e_ref primary key (id)
+);
+
+create table migtest_e_softdelete (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  constraint pk_migtest_e_softdelete primary key (id)
+);
+
+create table migtest_mtm_c (
+  id                            integer auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_mtm_c primary key (id)
+);
+
+create table migtest_mtm_m (
+  id                            bigint auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_mtm_m primary key (id)
+);
+
+create table migtest_oto_child (
+  id                            integer auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_oto_child primary key (id)
+);
+
+create table migtest_oto_master (
+  id                            bigint auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_oto_master primary key (id)
+);
+
+create index ix_migtest_e_basic_indextest1 on migtest_e_basic (indextest1);
+create index ix_migtest_e_basic_indextest5 on migtest_e_basic (indextest5);
+create index ix_migtest_fk_cascade_one_id on migtest_fk_cascade (one_id);
+alter table migtest_fk_cascade add constraint fk_migtest_fk_cascade_one_id foreign key (one_id) references migtest_fk_cascade_one (id) on delete cascade on update restrict;
+
+create index ix_migtest_fk_set_null_one_id on migtest_fk_set_null (one_id);
+alter table migtest_fk_set_null add constraint fk_migtest_fk_set_null_one_id foreign key (one_id) references migtest_fk_one (id) on delete set null on update restrict;
+
+create index ix_migtest_e_basic_eref_id on migtest_e_basic (eref_id);
+alter table migtest_e_basic add constraint fk_migtest_e_basic_eref_id foreign key (eref_id) references migtest_e_ref (id) on delete restrict on update restrict;
+
+alter table migtest_e_history2 add system versioning;
+alter table migtest_e_history3 add system versioning;
+alter table migtest_e_history4 add system versioning;
+alter table migtest_e_history5 add system versioning;
+alter table migtest_e_history6 add system versioning;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/1.0__initial.sql

@@ -0,0 +1,176 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+create table migtest_ckey_assoc (
+  id                            integer auto_increment not null,
+  assoc_one                     varchar(255),
+  constraint pk_migtest_ckey_assoc primary key (id)
+);
+
+create table migtest_ckey_detail (
+  id                            integer auto_increment not null,
+  something                     varchar(255),
+  constraint pk_migtest_ckey_detail primary key (id)
+);
+
+create table migtest_ckey_parent (
+  one_key                       integer not null,
+  two_key                       varchar(127) not null,
+  name                          varchar(255),
+  version                       integer not null,
+  constraint pk_migtest_ckey_parent primary key (one_key,two_key)
+);
+
+create table migtest_fk_cascade (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_cascade primary key (id)
+);
+
+create table migtest_fk_cascade_one (
+  id                            bigint auto_increment not null,
+  constraint pk_migtest_fk_cascade_one primary key (id)
+);
+
+create table migtest_fk_none (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_none primary key (id)
+);
+
+create table migtest_fk_none_via_join (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_none_via_join primary key (id)
+);
+
+create table migtest_fk_one (
+  id                            bigint auto_increment not null,
+  constraint pk_migtest_fk_one primary key (id)
+);
+
+create table migtest_fk_set_null (
+  id                            bigint auto_increment not null,
+  one_id                        bigint,
+  constraint pk_migtest_fk_set_null primary key (id)
+);
+
+create table migtest_e_basic (
+  id                            integer auto_increment not null,
+  status                        varchar(1),
+  status2                       varchar(1) default 'N' not null,
+  name                          varchar(127),
+  description                   varchar(127),
+  some_date                     datetime(6),
+  old_boolean                   tinyint(1) default 0 not null,
+  old_boolean2                  tinyint(1),
+  eref_id                       integer,
+  indextest1                    varchar(127),
+  indextest2                    varchar(127),
+  indextest3                    varchar(127),
+  indextest4                    varchar(127),
+  indextest5                    varchar(127),
+  indextest6                    varchar(127),
+  user_id                       integer not null,
+  constraint uq_migtest_e_basic_indextest2 unique (indextest2),
+  constraint uq_migtest_e_basic_indextest6 unique (indextest6),
+  constraint pk_migtest_e_basic primary key (id)
+);
+
+create table migtest_e_enum (
+  id                            integer auto_increment not null,
+  test_status                   varchar(1),
+  constraint pk_migtest_e_enum primary key (id)
+);
+
+create table migtest_e_history (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  constraint pk_migtest_e_history primary key (id)
+);
+
+create table migtest_e_history2 (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  obsolete_string1              varchar(255),
+  obsolete_string2              varchar(255),
+  constraint pk_migtest_e_history2 primary key (id)
+);
+
+create table migtest_e_history3 (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  constraint pk_migtest_e_history3 primary key (id)
+);
+
+create table migtest_e_history4 (
+  id                            integer auto_increment not null,
+  test_number                   integer,
+  constraint pk_migtest_e_history4 primary key (id)
+);
+
+create table migtest_e_history5 (
+  id                            integer auto_increment not null,
+  test_number                   integer,
+  constraint pk_migtest_e_history5 primary key (id)
+);
+
+create table migtest_e_history6 (
+  id                            integer auto_increment not null,
+  test_number1                  integer,
+  test_number2                  integer not null,
+  constraint pk_migtest_e_history6 primary key (id)
+);
+
+create table migtest_e_ref (
+  id                            integer auto_increment not null,
+  name                          varchar(127) not null,
+  constraint uq_migtest_e_ref_name unique (name),
+  constraint pk_migtest_e_ref primary key (id)
+);
+
+create table migtest_e_softdelete (
+  id                            integer auto_increment not null,
+  test_string                   varchar(255),
+  constraint pk_migtest_e_softdelete primary key (id)
+);
+
+create table migtest_mtm_c (
+  id                            integer auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_mtm_c primary key (id)
+);
+
+create table migtest_mtm_m (
+  id                            bigint auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_mtm_m primary key (id)
+);
+
+create table migtest_oto_child (
+  id                            integer auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_oto_child primary key (id)
+);
+
+create table migtest_oto_master (
+  id                            bigint auto_increment not null,
+  name                          varchar(255),
+  constraint pk_migtest_oto_master primary key (id)
+);
+
+create index ix_migtest_e_basic_indextest1 on migtest_e_basic (indextest1);
+create index ix_migtest_e_basic_indextest5 on migtest_e_basic (indextest5);
+create index ix_migtest_fk_cascade_one_id on migtest_fk_cascade (one_id);
+alter table migtest_fk_cascade add constraint fk_migtest_fk_cascade_one_id foreign key (one_id) references migtest_fk_cascade_one (id) on delete cascade on update restrict;
+
+create index ix_migtest_fk_set_null_one_id on migtest_fk_set_null (one_id);
+alter table migtest_fk_set_null add constraint fk_migtest_fk_set_null_one_id foreign key (one_id) references migtest_fk_one (id) on delete set null on update restrict;
+
+create index ix_migtest_e_basic_eref_id on migtest_e_basic (eref_id);
+alter table migtest_e_basic add constraint fk_migtest_e_basic_eref_id foreign key (eref_id) references migtest_e_ref (id) on delete restrict on update restrict;
+
+alter table migtest_e_history2 add system versioning;
+alter table migtest_e_history3 add system versioning;
+alter table migtest_e_history4 add system versioning;
+alter table migtest_e_history5 add system versioning;
+alter table migtest_e_history6 add system versioning;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/1.1.sql

@@ -0,0 +1,115 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+create table migtest_e_user (
+  id                            integer auto_increment not null,
+  constraint pk_migtest_e_user primary key (id)
+);
+
+create table migtest_mtm_c_migtest_mtm_m (
+  migtest_mtm_c_id              integer not null,
+  migtest_mtm_m_id              bigint not null,
+  constraint pk_migtest_mtm_c_migtest_mtm_m primary key (migtest_mtm_c_id,migtest_mtm_m_id)
+);
+
+create table migtest_mtm_m_migtest_mtm_c (
+  migtest_mtm_m_id              bigint not null,
+  migtest_mtm_c_id              integer not null,
+  constraint pk_migtest_mtm_m_migtest_mtm_c primary key (migtest_mtm_m_id,migtest_mtm_c_id)
+);
+
+create table migtest_mtm_m_phone_numbers (
+  migtest_mtm_m_id              bigint not null,
+  value                         varchar(255) not null
+);
+
+alter table migtest_ckey_detail add column one_key integer;
+alter table migtest_ckey_detail add column two_key varchar(127);
+
+alter table migtest_ckey_detail add constraint fk_migtest_ckey_detail_parent foreign key (one_key,two_key) references migtest_ckey_parent (one_key,two_key) on delete restrict on update restrict;
+alter table migtest_ckey_parent add column assoc_id integer;
+
+alter table migtest_fk_cascade drop foreign key fk_migtest_fk_cascade_one_id;
+alter table migtest_fk_cascade add constraint fk_migtest_fk_cascade_one_id foreign key (one_id) references migtest_fk_cascade_one (id) on delete restrict on update restrict;
+alter table migtest_fk_none add constraint fk_migtest_fk_none_one_id foreign key (one_id) references migtest_fk_one (id) on delete restrict on update restrict;
+alter table migtest_fk_none_via_join add constraint fk_migtest_fk_none_via_join_one_id foreign key (one_id) references migtest_fk_one (id) on delete restrict on update restrict;
+alter table migtest_fk_set_null drop foreign key fk_migtest_fk_set_null_one_id;
+alter table migtest_fk_set_null add constraint fk_migtest_fk_set_null_one_id foreign key (one_id) references migtest_fk_one (id) on delete restrict on update restrict;
+
+update migtest_e_basic set status = 'A' where status is null;
+alter table migtest_e_basic alter status set default 'A';
+alter table migtest_e_basic modify status varchar(1) not null;
+alter table migtest_e_basic alter status2 drop default;
+alter table migtest_e_basic modify status2 varchar(127);
+
+-- rename all collisions;
+alter table migtest_e_basic add constraint uq_migtest_e_basic_description unique  (description);
+
+insert into migtest_e_user (id) select distinct user_id from migtest_e_basic;
+alter table migtest_e_basic add constraint fk_migtest_e_basic_user_id foreign key (user_id) references migtest_e_user (id) on delete restrict on update restrict;
+alter table migtest_e_basic modify user_id integer;
+alter table migtest_e_basic add column new_string_field varchar(255) default 'foo''bar' not null;
+alter table migtest_e_basic add column new_boolean_field tinyint(1) default 1 not null;
+update migtest_e_basic set new_boolean_field = old_boolean;
+
+alter table migtest_e_basic add column new_boolean_field2 tinyint(1) default 1 not null;
+alter table migtest_e_basic add column progress integer default 0 not null;
+alter table migtest_e_basic add column new_integer integer default 42 not null;
+
+alter table migtest_e_basic drop index uq_migtest_e_basic_indextest2;
+alter table migtest_e_basic drop index uq_migtest_e_basic_indextest6;
+alter table migtest_e_basic add constraint uq_migtest_e_basic_status_indextest1 unique  (status,indextest1);
+alter table migtest_e_basic add constraint uq_migtest_e_basic_name unique  (name);
+alter table migtest_e_basic add constraint uq_migtest_e_basic_indextest4 unique  (indextest4);
+alter table migtest_e_basic add constraint uq_migtest_e_basic_indextest5 unique  (indextest5);
+alter table migtest_e_history modify test_string bigint;
+alter table migtest_e_history comment = 'We have history now';
+
+-- NOTE: table has @History - special migration may be necessary
+SET @@system_versioning_alter_history = 1;
+update migtest_e_history2 set test_string = 'unknown' where test_string is null;
+alter table migtest_e_history2 alter test_string set default 'unknown';
+alter table migtest_e_history2 modify test_string varchar(255) not null;
+alter table migtest_e_history2 add column test_string2 varchar(255);
+alter table migtest_e_history2 add column test_string3 varchar(255) default 'unknown' not null;
+alter table migtest_e_history2 add column new_column varchar(20);
+
+alter table migtest_e_history4 modify test_number bigint;
+alter table migtest_e_history5 add column test_boolean tinyint(1) default 0 not null;
+
+
+-- NOTE: table has @History - special migration may be necessary
+update migtest_e_history6 set test_number1 = 42 where test_number1 is null;
+alter table migtest_e_history6 alter test_number1 set default 42;
+alter table migtest_e_history6 modify test_number1 integer not null;
+alter table migtest_e_history6 modify test_number2 integer;
+alter table migtest_e_softdelete add column deleted tinyint(1) default 0 not null;
+
+alter table migtest_oto_child add column master_id bigint;
+
+create index ix_migtest_e_basic_indextest3 on migtest_e_basic (indextest3);
+create index ix_migtest_e_basic_indextest6 on migtest_e_basic (indextest6);
+drop index ix_migtest_e_basic_indextest1 on migtest_e_basic;
+drop index ix_migtest_e_basic_indextest5 on migtest_e_basic;
+create index ix_migtest_mtm_c_migtest_mtm_m_migtest_mtm_c on migtest_mtm_c_migtest_mtm_m (migtest_mtm_c_id);
+alter table migtest_mtm_c_migtest_mtm_m add constraint fk_migtest_mtm_c_migtest_mtm_m_migtest_mtm_c foreign key (migtest_mtm_c_id) references migtest_mtm_c (id) on delete restrict on update restrict;
+
+create index ix_migtest_mtm_c_migtest_mtm_m_migtest_mtm_m on migtest_mtm_c_migtest_mtm_m (migtest_mtm_m_id);
+alter table migtest_mtm_c_migtest_mtm_m add constraint fk_migtest_mtm_c_migtest_mtm_m_migtest_mtm_m foreign key (migtest_mtm_m_id) references migtest_mtm_m (id) on delete restrict on update restrict;
+
+create index ix_migtest_mtm_m_migtest_mtm_c_migtest_mtm_m on migtest_mtm_m_migtest_mtm_c (migtest_mtm_m_id);
+alter table migtest_mtm_m_migtest_mtm_c add constraint fk_migtest_mtm_m_migtest_mtm_c_migtest_mtm_m foreign key (migtest_mtm_m_id) references migtest_mtm_m (id) on delete restrict on update restrict;
+
+create index ix_migtest_mtm_m_migtest_mtm_c_migtest_mtm_c on migtest_mtm_m_migtest_mtm_c (migtest_mtm_c_id);
+alter table migtest_mtm_m_migtest_mtm_c add constraint fk_migtest_mtm_m_migtest_mtm_c_migtest_mtm_c foreign key (migtest_mtm_c_id) references migtest_mtm_c (id) on delete restrict on update restrict;
+
+create index ix_migtest_mtm_m_phone_numbers_migtest_mtm_m_id on migtest_mtm_m_phone_numbers (migtest_mtm_m_id);
+alter table migtest_mtm_m_phone_numbers add constraint fk_migtest_mtm_m_phone_numbers_migtest_mtm_m_id foreign key (migtest_mtm_m_id) references migtest_mtm_m (id) on delete restrict on update restrict;
+
+create index ix_migtest_ckey_parent_assoc_id on migtest_ckey_parent (assoc_id);
+alter table migtest_ckey_parent add constraint fk_migtest_ckey_parent_assoc_id foreign key (assoc_id) references migtest_ckey_assoc (id) on delete restrict on update restrict;
+
+alter table migtest_oto_child add constraint fk_migtest_oto_child_master_id foreign key (master_id) references migtest_oto_master (id) on delete restrict on update restrict;
+
+alter table migtest_e_history add system versioning;
+lock tables migtest_e_history3 write;
+unlock tables;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/1.2__dropsFor_1.1.sql

@@ -0,0 +1,14 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+CALL usp_ebean_drop_column('migtest_e_basic', 'old_boolean');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'old_boolean2');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'eref_id');
+
+CALL usp_ebean_drop_column('migtest_e_history2', 'obsolete_string1');
+
+CALL usp_ebean_drop_column('migtest_e_history2', 'obsolete_string2');
+
+drop table if exists migtest_e_ref;
+drop sequence if exists migtest_e_ref_seq;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/1.3.sql

@@ -0,0 +1,61 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+create table migtest_e_ref (
+  id                            integer auto_increment not null,
+  name                          varchar(127) not null,
+  constraint uq_migtest_e_ref_name unique (name),
+  constraint pk_migtest_e_ref primary key (id)
+);
+
+alter table migtest_ckey_detail drop foreign key fk_migtest_ckey_detail_parent;
+alter table migtest_fk_cascade drop foreign key fk_migtest_fk_cascade_one_id;
+alter table migtest_fk_cascade add constraint fk_migtest_fk_cascade_one_id foreign key (one_id) references migtest_fk_cascade_one (id) on delete cascade on update restrict;
+alter table migtest_fk_none drop foreign key fk_migtest_fk_none_one_id;
+alter table migtest_fk_none_via_join drop foreign key fk_migtest_fk_none_via_join_one_id;
+alter table migtest_fk_set_null drop foreign key fk_migtest_fk_set_null_one_id;
+alter table migtest_fk_set_null add constraint fk_migtest_fk_set_null_one_id foreign key (one_id) references migtest_fk_one (id) on delete set null on update restrict;
+alter table migtest_e_basic alter status drop default;
+alter table migtest_e_basic modify status varchar(1);
+
+update migtest_e_basic set status2 = 'N' where status2 is null;
+alter table migtest_e_basic alter status2 set default 'N';
+alter table migtest_e_basic modify status2 varchar(1) not null;
+alter table migtest_e_basic drop index uq_migtest_e_basic_description;
+
+update migtest_e_basic set user_id = 23 where user_id is null;
+alter table migtest_e_basic drop foreign key fk_migtest_e_basic_user_id;
+alter table migtest_e_basic alter user_id set default 23;
+alter table migtest_e_basic modify user_id integer not null;
+alter table migtest_e_basic add column old_boolean tinyint(1) default 0 not null;
+alter table migtest_e_basic add column old_boolean2 tinyint(1);
+alter table migtest_e_basic add column eref_id integer;
+
+alter table migtest_e_basic drop index uq_migtest_e_basic_status_indextest1;
+alter table migtest_e_basic drop index uq_migtest_e_basic_name;
+alter table migtest_e_basic drop index uq_migtest_e_basic_indextest4;
+alter table migtest_e_basic drop index uq_migtest_e_basic_indextest5;
+alter table migtest_e_basic add constraint uq_migtest_e_basic_indextest2 unique  (indextest2);
+alter table migtest_e_basic add constraint uq_migtest_e_basic_indextest6 unique  (indextest6);
+alter table migtest_e_history comment = '';
+alter table migtest_e_history2 alter test_string drop default;
+alter table migtest_e_history2 modify test_string varchar(255);
+alter table migtest_e_history2 add column obsolete_string1 varchar(255);
+alter table migtest_e_history2 add column obsolete_string2 varchar(255);
+
+alter table migtest_e_history4 modify test_number integer;
+alter table migtest_e_history6 alter test_number1 drop default;
+alter table migtest_e_history6 modify test_number1 integer;
+
+-- NOTE: table has @History - special migration may be necessary
+update migtest_e_history6 set test_number2 = 7 where test_number2 is null;
+alter table migtest_e_history6 alter test_number2 set default 7;
+alter table migtest_e_history6 modify test_number2 integer not null;
+create index ix_migtest_e_basic_indextest1 on migtest_e_basic (indextest1);
+create index ix_migtest_e_basic_indextest5 on migtest_e_basic (indextest5);
+drop index ix_migtest_e_basic_indextest3 on migtest_e_basic;
+drop index ix_migtest_e_basic_indextest6 on migtest_e_basic;
+create index ix_migtest_e_basic_eref_id on migtest_e_basic (eref_id);
+alter table migtest_e_basic add constraint fk_migtest_e_basic_eref_id foreign key (eref_id) references migtest_e_ref (id) on delete restrict on update restrict;
+
+lock tables migtest_e_history3 write;
+unlock tables;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/1.4__dropsFor_1.3.sql

@@ -0,0 +1,36 @@
+-- Migrationscripts for ebean unittest
+-- apply changes
+CALL usp_ebean_drop_column('migtest_ckey_detail', 'one_key');
+
+CALL usp_ebean_drop_column('migtest_ckey_detail', 'two_key');
+
+CALL usp_ebean_drop_column('migtest_ckey_parent', 'assoc_id');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'new_string_field');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'new_boolean_field');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'new_boolean_field2');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'progress');
+
+CALL usp_ebean_drop_column('migtest_e_basic', 'new_integer');
+
+CALL usp_ebean_drop_column('migtest_e_history2', 'test_string2');
+
+CALL usp_ebean_drop_column('migtest_e_history2', 'test_string3');
+
+CALL usp_ebean_drop_column('migtest_e_history2', 'new_column');
+
+CALL usp_ebean_drop_column('migtest_e_history5', 'test_boolean');
+
+CALL usp_ebean_drop_column('migtest_e_softdelete', 'deleted');
+
+CALL usp_ebean_drop_column('migtest_oto_child', 'master_id');
+
+drop table if exists migtest_e_user;
+drop sequence if exists migtest_e_user_seq;
+drop table if exists migtest_mtm_c_migtest_mtm_m;
+drop table if exists migtest_mtm_m_migtest_mtm_c;
+drop table if exists migtest_mtm_m_phone_numbers;
+alter table migtest_e_history drop system versioning;

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/I__create_procs.sql

@@ -0,0 +1,48 @@
+-- Inital script to create stored procedures etc for mysql platform
+DROP PROCEDURE IF EXISTS usp_ebean_drop_foreign_keys;
+
+delimiter $$
+--
+-- PROCEDURE: usp_ebean_drop_foreign_keys TABLE, COLUMN
+-- deletes all constraints and foreign keys referring to TABLE.COLUMN
+--
+CREATE PROCEDURE usp_ebean_drop_foreign_keys(IN p_table_name VARCHAR(255), IN p_column_name VARCHAR(255))
+BEGIN
+DECLARE done INT DEFAULT FALSE;
+DECLARE c_fk_name CHAR(255);
+DECLARE curs CURSOR FOR SELECT CONSTRAINT_NAME from information_schema.KEY_COLUMN_USAGE
+WHERE TABLE_SCHEMA = DATABASE() and TABLE_NAME = p_table_name and COLUMN_NAME = p_column_name
+AND REFERENCED_TABLE_NAME IS NOT NULL;
+DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
+
+OPEN curs;
+
+read_loop: LOOP
+FETCH curs INTO c_fk_name;
+IF done THEN
+LEAVE read_loop;
+END IF;
+SET @sql = CONCAT('ALTER TABLE ', p_table_name, ' DROP FOREIGN KEY ', c_fk_name);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+END LOOP;
+
+CLOSE curs;
+END
+$$
+
+DROP PROCEDURE IF EXISTS usp_ebean_drop_column;
+
+delimiter $$
+--
+-- PROCEDURE: usp_ebean_drop_column TABLE, COLUMN
+-- deletes the column and ensures that all indices and constraints are dropped first
+--
+CREATE PROCEDURE usp_ebean_drop_column(IN p_table_name VARCHAR(255), IN p_column_name VARCHAR(255))
+BEGIN
+CALL usp_ebean_drop_foreign_keys(p_table_name, p_column_name);
+SET @sql = CONCAT('ALTER TABLE ', p_table_name, ' DROP COLUMN ', p_column_name);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+END
+$$

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/R__order_views.sql

@@ -0,0 +1,7 @@
+
+    create or replace view order_agg_vw as
+    select d.order_id, sum(d.order_qty * d.unit_price) as order_total,
+           sum(d.ship_qty * d.unit_price) as ship_total
+    from o_order_detail d
+    group by d.order_id
+  

ebean-test/src/test/resources/migrationtest/dbmigration/mariadb/idx_mariadb.migrations

@@ -0,0 +1,8 @@
+1835064798,     I__create_procs.sql
+1615386118,     1.0__initial.sql
+128637084,      1.1.sql
+-116088700,     1.2__dropsFor_1.1.sql
+-1957738355,    1.3.sql
+930722740,      1.4__dropsFor_1.3.sql
+561281075,      R__order_views.sql
+

ebean-test/src/test/resources/migrationtest/dbmigration/model/1.1.model.xml

@@ -54,7 +54,15 @@
             </before>
         </alterColumn>
         <addTableComment name="migtest_e_history" comment="We have history now"/>
-        <alterColumn columnName="test_string" tableName="migtest_e_history2" withHistory="true" currentType="varchar" defaultValue="'unknown'" notnull="true" currentNotnull="false"/>
+        <alterColumn columnName="test_string" tableName="migtest_e_history2" withHistory="true" currentType="varchar" defaultValue="'unknown'" notnull="true" currentNotnull="false">
+            <before platforms="mariadb">
+                <ddl>SET @@system_versioning_alter_history = 1</ddl>
+                <ddl>update ${table} set ${column} = 'unknown' where ${column} is null</ddl>
+            </before>
+            <before>
+                <ddl>update ${table} set ${column} = 'unknown' where ${column} is null</ddl>
+            </before>
+        </alterColumn>
         <addColumn tableName="migtest_e_history2" withHistory="true">
             <column name="test_string2" type="varchar" historyExclude="true"/>
             <column name="test_string3" type="varchar" defaultValue="'unknown'" notnull="true"/>