@Override
    public Set<String> getIdentityColumnNames(String tableName) {
        return getSQLHandler().getItemsAsStringSet("select COLUMN_NAME from "
          + "INFORMATION_SCHEMA.INDEXES where PRIMARY_KEY = 'TRUE' AND "
          + "TABLE_NAME = '" + tableName + "' AND TABLE_SCHEMA = '"
          + getSchemaName() + "'");
    }
Gets the names of all primary columns of the given table.

@param tableName The table, not null
@return The names of the primary key columns of the table with the given
name
spock-unitils/src/test/java/org/unitils/core/dbsupport/H2DbSupport.java