HHH-12120 - Update StandardDialectResolver to reflect the latest Dialects of PostgreSQL and MySQL

This commit is contained in:
Yanming Zhou 2017-11-20 16:21:10 +08:00 committed by Vlad Mihalcea
parent 400a4bc24e
commit 304a0a89da
3 changed files with 562 additions and 196 deletions

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@ -0,0 +1,539 @@
package org.hibernate.dialect;
import org.hibernate.HibernateException;
import org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo;
/**
* List all supported relational database systems.
*
* @author Vlad Mihalcea
*/
public enum Database {
CACHE {
@Override
public Class<? extends Dialect> latestDialect() {
return Cache71Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
CUBRID {
@Override
public Class<? extends Dialect> latestDialect() {
return CUBRIDDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "CUBRID".equalsIgnoreCase( databaseName ) ) {
return latestDialectInstance( this );
}
return null;
}
},
DB2 {
@Override
public Class<? extends Dialect> latestDialect() {
return DB2400Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "DB2 UDB for AS/400".equals( databaseName ) ) {
return new DB2400Dialect();
}
if ( databaseName.startsWith( "DB2/" ) ) {
return new DB2Dialect();
}
return null;
}
},
DERBY {
@Override
public Class<? extends Dialect> latestDialect() {
return DerbyTenSevenDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "Apache Derby".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion > 10 || ( majorVersion == 10 && minorVersion >= 7 ) ) {
return latestDialectInstance( this );
}
else if ( majorVersion == 10 && minorVersion == 6 ) {
return new DerbyTenSixDialect();
}
else if ( majorVersion == 10 && minorVersion == 5 ) {
return new DerbyTenFiveDialect();
}
else {
return new DerbyDialect();
}
}
return null;
}
},
ENTERPRISEDB {
@Override
public Class<? extends Dialect> latestDialect() {
return PostgresPlusDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "EnterpriseDB".equals( databaseName ) ) {
return latestDialectInstance( this );
}
return null;
}
},
FIREBIRD {
@Override
public Class<? extends Dialect> latestDialect() {
return FirebirdDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( databaseName.startsWith( "Firebird" ) ) {
return latestDialectInstance( this );
}
return null;
}
},
FRONTBASE {
@Override
public Class<? extends Dialect> latestDialect() {
return FrontBaseDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
H2 {
@Override
public Class<? extends Dialect> latestDialect() {
return H2Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "H2".equals( databaseName ) ) {
return latestDialectInstance( this );
}
return null;
}
},
HANA {
@Override
public Class<? extends Dialect> latestDialect() {
return HANAColumnStoreDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "HDB".equals( databaseName ) ) {
// SAP recommends defaulting to column store.
return latestDialectInstance( this );
}
return null;
}
},
HSQL {
@Override
public Class<? extends Dialect> latestDialect() {
return HSQLDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "HSQL Database Engine".equals( databaseName ) ) {
return latestDialectInstance( this );
}
return null;
}
},
INFORMIX {
@Override
public Class<? extends Dialect> latestDialect() {
return Informix10Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "Informix Dynamic Server".equals( databaseName ) ) {
return latestDialectInstance( this );
}
return null;
}
},
INGRES {
@Override
public Class<? extends Dialect> latestDialect() {
return Ingres10Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "ingres".equalsIgnoreCase( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion < 9 ) {
return new IngresDialect();
}
else if ( majorVersion == 9 ) {
if ( minorVersion > 2 ) {
return new Ingres9Dialect();
}
return new IngresDialect();
}
else if ( majorVersion == 10 ) {
return new Ingres10Dialect();
}
return latestDialectInstance( this );
}
return null;
}
},
INTERBASE {
@Override
public Class<? extends Dialect> latestDialect() {
return InterbaseDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
MARIADB {
@Override
public Class<? extends Dialect> latestDialect() {
return MariaDB53Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
if ( info.getDriverName() != null && info.getDriverName().startsWith( "MariaDB" ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion < 5 || ( majorVersion == 5 && minorVersion < 3 ) ) {
return new MariaDBDialect();
}
return latestDialectInstance( this );
}
return null;
}
},
MAXDB {
@Override
public Class<? extends Dialect> latestDialect() {
return SAPDBDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
MCKOI {
@Override
public Class<? extends Dialect> latestDialect() {
return MckoiDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
MIMERSQL {
@Override
public Class<? extends Dialect> latestDialect() {
return MimerSQLDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
MYSQL {
@Override
public Class<? extends Dialect> latestDialect() {
return MySQL57Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "MySQL".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion < 5 ) {
return new MySQLDialect();
}
else if ( majorVersion == 5 ) {
if ( minorVersion < 5 ) {
return new MySQL5Dialect();
}
else if ( minorVersion < 7 ) {
return new MySQL55Dialect();
}
else {
return new MySQL57Dialect();
}
}
return latestDialectInstance( this );
}
return null;
}
},
ORACLE {
@Override
public Class<? extends Dialect> latestDialect() {
return Oracle12cDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "Oracle".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
switch ( majorVersion ) {
case 12:
return new Oracle12cDialect();
case 11:
// fall through
case 10:
return new Oracle10gDialect();
case 9:
return new Oracle9iDialect();
case 8:
return new Oracle8iDialect();
default:
latestDialectInstance( this );
}
}
return null;
}
},
POINTBASE {
@Override
public Class<? extends Dialect> latestDialect() {
return PointbaseDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
POSTGRESQL {
@Override
public Class<? extends Dialect> latestDialect() {
return PostgreSQL95Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "PostgreSQL".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion < 8 ) {
return new PostgreSQL81Dialect();
}
if ( majorVersion == 8 ) {
return minorVersion >= 2 ? new PostgreSQL82Dialect() : new PostgreSQL81Dialect();
}
if ( majorVersion == 9 ) {
if ( minorVersion < 2 ) {
return new PostgreSQL9Dialect();
}
else if ( minorVersion < 4 ) {
return new PostgreSQL92Dialect();
}
else if ( minorVersion < 5 ) {
return new PostgreSQL94Dialect();
}
else if ( minorVersion < 6 ) {
return new PostgreSQL95Dialect();
}
}
return latestDialectInstance( this );
}
return null;
}
},
PROGRESS {
@Override
public Class<? extends Dialect> latestDialect() {
return ProgressDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
SQLSERVER {
@Override
public Class<? extends Dialect> latestDialect() {
return SQLServer2012Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( databaseName.startsWith( "Microsoft SQL Server" ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
switch ( majorVersion ) {
case 8: {
return new SQLServerDialect();
}
case 9: {
return new SQLServer2005Dialect();
}
case 10: {
return new SQLServer2008Dialect();
}
case 11:
case 12:
case 13: {
return new SQLServer2012Dialect();
}
default: {
if ( majorVersion < 8 ) {
return new SQLServerDialect();
}
else {
// assume `majorVersion > 13`
return latestDialectInstance( this );
}
}
}
}
return null;
}
},
SYBASE {
@Override
public Class<? extends Dialect> latestDialect() {
return SybaseASE15Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "Sybase SQL Server".equals( databaseName ) || "Adaptive Server Enterprise".equals( databaseName ) ) {
return latestDialectInstance( this );
}
if ( databaseName.startsWith( "Adaptive Server Anywhere" ) ) {
return new SybaseAnywhereDialect();
}
return null;
}
},
TERADATA {
@Override
public Class<? extends Dialect> latestDialect() {
return Teradata14Dialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
},
TIMESTEN {
@Override
public Class<? extends Dialect> latestDialect() {
return TimesTenDialect.class;
}
@Override
public Dialect resolveDialect(DialectResolutionInfo info) {
return null;
}
};
public abstract Class<? extends Dialect> latestDialect();
public abstract Dialect resolveDialect(DialectResolutionInfo info);
private static Dialect latestDialectInstance(Database database) {
try {
return database.latestDialect().newInstance();
}
catch (InstantiationException | IllegalAccessException e) {
throw new HibernateException( e );
}
}
}

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@ -6,40 +6,8 @@
*/ */
package org.hibernate.engine.jdbc.dialect.internal; package org.hibernate.engine.jdbc.dialect.internal;
import org.hibernate.dialect.CUBRIDDialect; import org.hibernate.dialect.Database;
import org.hibernate.dialect.DB2400Dialect;
import org.hibernate.dialect.DB2Dialect;
import org.hibernate.dialect.DerbyDialect;
import org.hibernate.dialect.DerbyTenFiveDialect;
import org.hibernate.dialect.DerbyTenSevenDialect;
import org.hibernate.dialect.DerbyTenSixDialect;
import org.hibernate.dialect.Dialect; import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.FirebirdDialect;
import org.hibernate.dialect.H2Dialect;
import org.hibernate.dialect.HANAColumnStoreDialect;
import org.hibernate.dialect.HSQLDialect;
import org.hibernate.dialect.InformixDialect;
import org.hibernate.dialect.Ingres10Dialect;
import org.hibernate.dialect.Ingres9Dialect;
import org.hibernate.dialect.IngresDialect;
import org.hibernate.dialect.MySQL5Dialect;
import org.hibernate.dialect.MySQLDialect;
import org.hibernate.dialect.Oracle10gDialect;
import org.hibernate.dialect.Oracle12cDialect;
import org.hibernate.dialect.Oracle8iDialect;
import org.hibernate.dialect.Oracle9iDialect;
import org.hibernate.dialect.PostgreSQL81Dialect;
import org.hibernate.dialect.PostgreSQL82Dialect;
import org.hibernate.dialect.PostgreSQL92Dialect;
import org.hibernate.dialect.PostgreSQL94Dialect;
import org.hibernate.dialect.PostgreSQL9Dialect;
import org.hibernate.dialect.PostgresPlusDialect;
import org.hibernate.dialect.SQLServer2005Dialect;
import org.hibernate.dialect.SQLServer2008Dialect;
import org.hibernate.dialect.SQLServer2012Dialect;
import org.hibernate.dialect.SQLServerDialect;
import org.hibernate.dialect.SybaseASE15Dialect;
import org.hibernate.dialect.SybaseAnywhereDialect;
import org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo; import org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo;
import org.hibernate.engine.jdbc.dialect.spi.DialectResolver; import org.hibernate.engine.jdbc.dialect.spi.DialectResolver;
import org.hibernate.internal.CoreLogging; import org.hibernate.internal.CoreLogging;
@ -60,170 +28,12 @@ public class StandardDialectResolver implements DialectResolver {
@Override @Override
public Dialect resolveDialect(DialectResolutionInfo info) { public Dialect resolveDialect(DialectResolutionInfo info) {
final String databaseName = info.getDatabaseName();
if ( "CUBRID".equalsIgnoreCase( databaseName ) ) { for ( Database database : Database.values() ) {
return new CUBRIDDialect(); Dialect dialect = database.resolveDialect( info );
} if ( dialect != null ) {
return dialect;
if ( "HSQL Database Engine".equals( databaseName ) ) {
return new HSQLDialect();
}
if ( "H2".equals( databaseName ) ) {
return new H2Dialect();
}
if ( "MySQL".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
if (majorVersion >= 5 ) {
return new MySQL5Dialect();
} }
return new MySQLDialect();
}
if ( "PostgreSQL".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion == 9 ) {
if ( minorVersion >= 4 ) {
return new PostgreSQL94Dialect();
}
else if ( minorVersion >= 2 ) {
return new PostgreSQL92Dialect();
}
return new PostgreSQL9Dialect();
}
if ( majorVersion == 8 && minorVersion >= 2 ) {
return new PostgreSQL82Dialect();
}
return new PostgreSQL81Dialect();
}
if ( "EnterpriseDB".equals( databaseName ) ) {
return new PostgresPlusDialect();
}
if ( "Apache Derby".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
if ( majorVersion > 10 || ( majorVersion == 10 && minorVersion >= 7 ) ) {
return new DerbyTenSevenDialect();
}
else if ( majorVersion == 10 && minorVersion == 6 ) {
return new DerbyTenSixDialect();
}
else if ( majorVersion == 10 && minorVersion == 5 ) {
return new DerbyTenFiveDialect();
}
else {
return new DerbyDialect();
}
}
if ( "ingres".equalsIgnoreCase( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
final int minorVersion = info.getDatabaseMinorVersion();
switch ( majorVersion ) {
case 9:
if (minorVersion > 2) {
return new Ingres9Dialect();
}
return new IngresDialect();
case 10:
return new Ingres10Dialect();
default:
LOG.unknownIngresVersion( majorVersion );
}
return new IngresDialect();
}
if ( databaseName.startsWith( "Microsoft SQL Server" ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
switch ( majorVersion ) {
case 8: {
return new SQLServerDialect();
}
case 9: {
return new SQLServer2005Dialect();
}
case 10: {
return new SQLServer2008Dialect();
}
case 11:
case 12:
case 13: {
return new SQLServer2012Dialect();
}
default: {
if ( majorVersion < 8 ) {
LOG.unknownSqlServerVersion( majorVersion, SQLServerDialect.class );
return new SQLServerDialect();
}
else {
// assume `majorVersion > 13`
LOG.unknownSqlServerVersion( majorVersion, SQLServer2012Dialect.class );
return new SQLServer2012Dialect();
}
}
}
}
if ( "Sybase SQL Server".equals( databaseName ) || "Adaptive Server Enterprise".equals( databaseName ) ) {
return new SybaseASE15Dialect();
}
if ( databaseName.startsWith( "Adaptive Server Anywhere" ) ) {
return new SybaseAnywhereDialect();
}
if ( "Informix Dynamic Server".equals( databaseName ) ) {
return new InformixDialect();
}
if ( "DB2 UDB for AS/400".equals( databaseName ) ) {
return new DB2400Dialect();
}
if ( databaseName.startsWith( "DB2/" ) ) {
return new DB2Dialect();
}
if ( "Oracle".equals( databaseName ) ) {
final int majorVersion = info.getDatabaseMajorVersion();
switch ( majorVersion ) {
case 12:
return new Oracle12cDialect();
case 11:
// fall through
case 10:
return new Oracle10gDialect();
case 9:
return new Oracle9iDialect();
case 8:
return new Oracle8iDialect();
default:
LOG.unknownOracleVersion( majorVersion );
}
return new Oracle8iDialect();
}
if ( "HDB".equals( databaseName ) ) {
// SAP recommends defaulting to column store.
return new HANAColumnStoreDialect();
}
if ( databaseName.startsWith( "Firebird" ) ) {
return new FirebirdDialect();
} }
return null; return null;

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@ -27,8 +27,11 @@ import org.hibernate.dialect.DerbyTenSixDialect;
import org.hibernate.dialect.Dialect; import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.H2Dialect; import org.hibernate.dialect.H2Dialect;
import org.hibernate.dialect.HSQLDialect; import org.hibernate.dialect.HSQLDialect;
import org.hibernate.dialect.Informix10Dialect;
import org.hibernate.dialect.InformixDialect; import org.hibernate.dialect.InformixDialect;
import org.hibernate.dialect.IngresDialect; import org.hibernate.dialect.IngresDialect;
import org.hibernate.dialect.MySQL55Dialect;
import org.hibernate.dialect.MySQL57Dialect;
import org.hibernate.dialect.MySQL5Dialect; import org.hibernate.dialect.MySQL5Dialect;
import org.hibernate.dialect.MySQLDialect; import org.hibernate.dialect.MySQLDialect;
import org.hibernate.dialect.Oracle10gDialect; import org.hibernate.dialect.Oracle10gDialect;
@ -36,6 +39,9 @@ import org.hibernate.dialect.Oracle8iDialect;
import org.hibernate.dialect.Oracle9iDialect; import org.hibernate.dialect.Oracle9iDialect;
import org.hibernate.dialect.PostgreSQL81Dialect; import org.hibernate.dialect.PostgreSQL81Dialect;
import org.hibernate.dialect.PostgreSQL82Dialect; import org.hibernate.dialect.PostgreSQL82Dialect;
import org.hibernate.dialect.PostgreSQL92Dialect;
import org.hibernate.dialect.PostgreSQL94Dialect;
import org.hibernate.dialect.PostgreSQL95Dialect;
import org.hibernate.dialect.PostgreSQL9Dialect; import org.hibernate.dialect.PostgreSQL9Dialect;
import org.hibernate.dialect.PostgresPlusDialect; import org.hibernate.dialect.PostgresPlusDialect;
import org.hibernate.dialect.SQLServerDialect; import org.hibernate.dialect.SQLServerDialect;
@ -136,9 +142,20 @@ public class DialectFactoryTest extends BaseUnitTestCase {
testDetermination( "H2", H2Dialect.class, resolver ); testDetermination( "H2", H2Dialect.class, resolver );
testDetermination( "MySQL", MySQLDialect.class, resolver ); testDetermination( "MySQL", MySQLDialect.class, resolver );
testDetermination( "MySQL", 5, 0, MySQL5Dialect.class, resolver ); testDetermination( "MySQL", 5, 0, MySQL5Dialect.class, resolver );
testDetermination( "MySQL", 5, 5, MySQL55Dialect.class, resolver );
testDetermination( "MySQL", 5, 6, MySQL55Dialect.class, resolver );
testDetermination( "MySQL", 5, 7, MySQL57Dialect.class, resolver );
testDetermination( "MySQL", 8, 0, MySQL57Dialect.class, resolver );
testDetermination( "PostgreSQL", PostgreSQL81Dialect.class, resolver ); testDetermination( "PostgreSQL", PostgreSQL81Dialect.class, resolver );
testDetermination( "PostgreSQL", 8, 2, PostgreSQL82Dialect.class, resolver ); testDetermination( "PostgreSQL", 8, 2, PostgreSQL82Dialect.class, resolver );
testDetermination( "PostgreSQL", 8, 3, PostgreSQL82Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 0, PostgreSQL9Dialect.class, resolver ); testDetermination( "PostgreSQL", 9, 0, PostgreSQL9Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 1, PostgreSQL9Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 2, PostgreSQL92Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 3, PostgreSQL92Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 4, PostgreSQL94Dialect.class, resolver );
testDetermination( "PostgreSQL", 9, 5, PostgreSQL95Dialect.class, resolver );
testDetermination( "PostgreSQL", 10, 0, PostgreSQL95Dialect.class, resolver );
testDetermination( "EnterpriseDB", 9, 2, PostgresPlusDialect.class, resolver ); testDetermination( "EnterpriseDB", 9, 2, PostgresPlusDialect.class, resolver );
testDetermination( "Apache Derby", 10, 4, DerbyDialect.class, resolver ); testDetermination( "Apache Derby", 10, 4, DerbyDialect.class, resolver );
testDetermination( "Apache Derby", 10, 5, DerbyTenFiveDialect.class, resolver ); testDetermination( "Apache Derby", 10, 5, DerbyTenFiveDialect.class, resolver );
@ -152,7 +169,7 @@ public class DialectFactoryTest extends BaseUnitTestCase {
testDetermination( "Sybase SQL Server", SybaseASE15Dialect.class, resolver ); testDetermination( "Sybase SQL Server", SybaseASE15Dialect.class, resolver );
testDetermination( "Adaptive Server Enterprise", SybaseASE15Dialect.class, resolver ); testDetermination( "Adaptive Server Enterprise", SybaseASE15Dialect.class, resolver );
testDetermination( "Adaptive Server Anywhere", SybaseAnywhereDialect.class, resolver ); testDetermination( "Adaptive Server Anywhere", SybaseAnywhereDialect.class, resolver );
testDetermination( "Informix Dynamic Server", InformixDialect.class, resolver ); testDetermination( "Informix Dynamic Server", Informix10Dialect.class, resolver );
testDetermination( "DB2/NT", DB2Dialect.class, resolver ); testDetermination( "DB2/NT", DB2Dialect.class, resolver );
testDetermination( "DB2/LINUX", DB2Dialect.class, resolver ); testDetermination( "DB2/LINUX", DB2Dialect.class, resolver );
testDetermination( "DB2/6000", DB2Dialect.class, resolver ); testDetermination( "DB2/6000", DB2Dialect.class, resolver );