Remove JDataStoreDialect

It is:

- not used (no JDataStore questions on StackOverflow)
- not maintained
- not of high quality

hibernate-core/src/main/java/org/hibernate/boot/registry/selector/internal/StrategySelectorBuilder.java

@@ -44,7 +44,6 @@ import org.hibernate.dialect.Ingres10Dialect;
 import org.hibernate.dialect.Ingres9Dialect;
 import org.hibernate.dialect.IngresDialect;
 import org.hibernate.dialect.InterbaseDialect;
-import org.hibernate.dialect.JDataStoreDialect;
 import org.hibernate.dialect.MckoiDialect;
 import org.hibernate.dialect.MimerSQLDialect;
 import org.hibernate.dialect.MySQL57Dialect;
@@ -211,7 +210,6 @@ public class StrategySelectorBuilder {
 		addDialect( strategySelector, Ingres9Dialect.class );
 		addDialect( strategySelector, Ingres10Dialect.class );
 		addDialect( strategySelector, InterbaseDialect.class );
-		addDialect( strategySelector, JDataStoreDialect.class );
 		addDialect( strategySelector, MckoiDialect.class );
 		addDialect( strategySelector, MimerSQLDialect.class );
 		addDialect( strategySelector, MySQL5Dialect.class );

hibernate-core/src/main/java/org/hibernate/dialect/JDataStoreDialect.java

@@ -1,76 +0,0 @@
-/*
- * Hibernate, Relational Persistence for Idiomatic Java
- *
- * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
- * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
- */
-package org.hibernate.dialect;
-
-import java.sql.Types;
-
-import org.hibernate.cfg.Environment;
-import org.hibernate.dialect.identity.IdentityColumnSupport;
-import org.hibernate.dialect.identity.JDataStoreIdentityColumnSupport;
-
-/**
- * A Dialect for JDataStore.
- * 
- * @author Vishy Kasar
- */
-public class JDataStoreDialect extends Dialect {
-
-	public JDataStoreDialect() {
-		super();
-		//only surviving documentation known to Google:
-		//https://web.mit.edu/jbuilder_v2005/distrib/share/doc/jds_devgd.pdf
-
-		//'bit' is a synonym for 'boolean'
-		registerColumnType( Types.BIT, "tinyint" );
-
-		//no 'blob' nor 'clob', at least not in 7
-		registerColumnType( Types.BLOB, "varbinary" );
-		registerColumnType( Types.CLOB, "varchar" );
-
-		//no precision, at least not in 7
-		registerColumnType( Types.TIMESTAMP, "timestamp" );
-		registerColumnType( Types.TIMESTAMP_WITH_TIMEZONE, "timestamp" );
-
-		getDefaultProperties().setProperty( Environment.STATEMENT_BATCH_SIZE, DEFAULT_BATCH_SIZE );
-	}
-
-	@Override
-	public String getAddColumnString() {
-		return "add";
-	}
-
-	@Override
-	public boolean dropConstraints() {
-		return false;
-	}
-
-	@Override
-	public String getCascadeConstraintsString() {
-		return " cascade";
-	}
-
-	@Override
-	public String getNoColumnsInsertString() {
-		return "default values";
-	}
-
-	@Override
-	public boolean supportsColumnCheck() {
-		return false;
-	}
-
-	@Override
-	public boolean supportsTableCheck() {
-		return false;
-	}
-
-	@Override
-	public IdentityColumnSupport getIdentityColumnSupport() {
-		return new JDataStoreIdentityColumnSupport();
-	}
-
-}