@Override
    public List<ForeignKey<IndexShardRecord, ?>> getReferences() {
        return Arrays.asList(Keys.INDEX_SHARD_FK_VOLUME_ID);
    }
Create a <code>stroom.index_shard</code> table reference
stroom-index/stroom-index-impl-db-jooq/src/main/java/stroom/index/impl/db/jooq/tables/IndexShard.java