public DB2Dialect() {
super();
registerColumnType( Types.BIT, "smallint" );
registerColumnType( Types.BIGINT, "bigint" );
registerColumnType( Types.SMALLINT, "smallint" );
registerColumnType( Types.TINYINT, "smallint" );
registerColumnType( Types.INTEGER, "integer" );
registerColumnType( Types.CHAR, "char(1)" );
registerColumnType( Types.VARCHAR, "varchar($l)" );
registerColumnType( Types.FLOAT, "float" );
registerColumnType( Types.DOUBLE, "double" );
registerColumnType( Types.DATE, "date" );
registerColumnType( Types.TIME, "time" );
registerColumnType( Types.TIMESTAMP, "timestamp" );
registerColumnType( Types.VARBINARY, "varchar($l) for bit data" );
registerColumnType( Types.NUMERIC, "numeric($p,$s)" );
registerColumnType( Types.BLOB, "blob($l)" );
registerColumnType( Types.CLOB, "clob($l)" );
registerFunction("abs", new StandardSQLFunction("abs") );
registerFunction("absval", new StandardSQLFunction("absval") );
registerFunction("sign", new StandardSQLFunction("sign", Hibernate.INTEGER) );
registerFunction("ceiling", new StandardSQLFunction("ceiling") );
registerFunction("ceil", new StandardSQLFunction("ceil") );
registerFunction("floor", new StandardSQLFunction("floor") );
registerFunction("round", new StandardSQLFunction("round") );
registerFunction("acos", new StandardSQLFunction("acos", Hibernate.DOUBLE) );
registerFunction("asin", new StandardSQLFunction("asin", Hibernate.DOUBLE) );
registerFunction("atan", new StandardSQLFunction("atan", Hibernate.DOUBLE) );
registerFunction("cos", new StandardSQLFunction("cos", Hibernate.DOUBLE) );
registerFunction("cot", new StandardSQLFunction("cot", Hibernate.DOUBLE) );
registerFunction("degrees", new StandardSQLFunction("degrees", Hibernate.DOUBLE) );
registerFunction("exp", new StandardSQLFunction("exp", Hibernate.DOUBLE) );
registerFunction("float", new StandardSQLFunction("float", Hibernate.DOUBLE) );
registerFunction("hex", new StandardSQLFunction("hex", Hibernate.STRING) );
registerFunction("ln", new StandardSQLFunction("ln", Hibernate.DOUBLE) );
registerFunction("log", new StandardSQLFunction("log", Hibernate.DOUBLE) );
registerFunction("log10", new StandardSQLFunction("log10", Hibernate.DOUBLE) );
registerFunction("radians", new StandardSQLFunction("radians", Hibernate.DOUBLE) );
registerFunction("rand", new NoArgSQLFunction("rand", Hibernate.DOUBLE) );
registerFunction("sin", new StandardSQLFunction("sin", Hibernate.DOUBLE) );
registerFunction("soundex", new StandardSQLFunction("soundex", Hibernate.STRING) );
registerFunction("sqrt", new StandardSQLFunction("sqrt", Hibernate.DOUBLE) );
registerFunction("stddev", new StandardSQLFunction("stddev", Hibernate.DOUBLE) );
registerFunction("tan", new StandardSQLFunction("tan", Hibernate.DOUBLE) );
registerFunction("variance", new StandardSQLFunction("variance", Hibernate.DOUBLE) );
registerFunction("julian_day", new StandardSQLFunction("julian_day", Hibernate.INTEGER) );
registerFunction("microsecond", new StandardSQLFunction("microsecond", Hibernate.INTEGER) );
registerFunction("midnight_seconds", new StandardSQLFunction("midnight_seconds", Hibernate.INTEGER) );
registerFunction("minute", new StandardSQLFunction("minute", Hibernate.INTEGER) );
registerFunction("month", new StandardSQLFunction("month", Hibernate.INTEGER) );
registerFunction("monthname", new StandardSQLFunction("monthname", Hibernate.STRING) );
registerFunction("quarter", new StandardSQLFunction("quarter", Hibernate.INTEGER) );
registerFunction("hour", new StandardSQLFunction("hour", Hibernate.INTEGER) );
registerFunction("second", new StandardSQLFunction("second", Hibernate.INTEGER) );
registerFunction("current_date", new NoArgSQLFunction("current date", Hibernate.DATE, false) );
registerFunction("date", new StandardSQLFunction("date", Hibernate.DATE) );
registerFunction("day", new StandardSQLFunction("day", Hibernate.INTEGER) );
registerFunction("dayname", new StandardSQLFunction("dayname", Hibernate.STRING) );
registerFunction("dayofweek", new StandardSQLFunction("dayofweek", Hibernate.INTEGER) );
registerFunction("dayofweek_iso", new StandardSQLFunction("dayofweek_iso", Hibernate.INTEGER) );
registerFunction("dayofyear", new StandardSQLFunction("dayofyear", Hibernate.INTEGER) );
registerFunction("days", new StandardSQLFunction("days", Hibernate.LONG) );
registerFunction("current_time", new NoArgSQLFunction("current time", Hibernate.TIME, false) );
registerFunction("time", new StandardSQLFunction("time", Hibernate.TIME) );
registerFunction("current_timestamp", new NoArgSQLFunction("current timestamp", Hibernate.TIMESTAMP, false) );
registerFunction("timestamp", new StandardSQLFunction("timestamp", Hibernate.TIMESTAMP) );
registerFunction("timestamp_iso", new StandardSQLFunction("timestamp_iso", Hibernate.TIMESTAMP) );
registerFunction("week", new StandardSQLFunction("week", Hibernate.INTEGER) );
registerFunction("week_iso", new StandardSQLFunction("week_iso", Hibernate.INTEGER) );
registerFunction("year", new StandardSQLFunction("year", Hibernate.INTEGER) );
registerFunction("double", new StandardSQLFunction("double", Hibernate.DOUBLE) );
registerFunction("varchar", new StandardSQLFunction("varchar", Hibernate.STRING) );
registerFunction("real", new StandardSQLFunction("real", Hibernate.FLOAT) );
registerFunction("bigint", new StandardSQLFunction("bigint", Hibernate.LONG) );
registerFunction("char", new StandardSQLFunction("char", Hibernate.CHARACTER) );
registerFunction("integer", new StandardSQLFunction("integer", Hibernate.INTEGER) );
registerFunction("smallint", new StandardSQLFunction("smallint", Hibernate.SHORT) );
registerFunction("digits", new StandardSQLFunction("digits", Hibernate.STRING) );
registerFunction("chr", new StandardSQLFunction("chr", Hibernate.CHARACTER) );
registerFunction("upper", new StandardSQLFunction("upper") );
registerFunction("lower", new StandardSQLFunction("lower") );
registerFunction("ucase", new StandardSQLFunction("ucase") );
registerFunction("lcase", new StandardSQLFunction("lcase") );
registerFunction("length", new StandardSQLFunction("length", Hibernate.LONG) );
registerFunction("ltrim", new StandardSQLFunction("ltrim") );
registerFunction("rtrim", new StandardSQLFunction("rtrim") );
registerFunction( "substr", new StandardSQLFunction( "substr", Hibernate.STRING ) );
registerFunction( "posstr", new StandardSQLFunction( "posstr", Hibernate.INTEGER ) );
registerFunction( "substring", new StandardSQLFunction( "substr", Hibernate.STRING ) );
registerFunction( "bit_length", new SQLFunctionTemplate( Hibernate.INTEGER, "length(?1)*8" ) );
registerFunction( "trim", new AnsiTrimEmulationFunction() );
registerFunction( "concat", new VarArgsSQLFunction(Hibernate.STRING, "", "||", "") );
registerFunction( "str", new SQLFunctionTemplate( Hibernate.STRING, "rtrim(char(?1))" ) );
registerKeyword("current");
registerKeyword("date");
registerKeyword("time");
registerKeyword("timestamp");
registerKeyword("fetch");
registerKeyword("first");
registerKeyword("rows");
registerKeyword("only");
getDefaultProperties().setProperty(Environment.STATEMENT_BATCH_SIZE, NO_BATCH);
}