@Override
    public void incrementIdentityColumnToValue(String tableName,
      String identityColumnName, long identityValue) {
        getSQLHandler().executeUpdate("alter table " + qualified(tableName)
          + " alter column " + quoted(identityColumnName) + " RESTART WITH "
          + identityValue);
    }
Increments the identity value for the specified identity column on the
specified table to the given value.

@param tableName          The table with the identity column, not null
@param identityColumnName The column, not null
@param identityValue      The new value
spock-unitils/src/test/java/org/unitils/core/dbsupport/H2DbSupport.java