@Override public ByteBuffer[] getFileMetadata(List<Long> fileIds) throws MetaException {
    return rawStore.getFileMetadata(fileIds);
  }
getPartitionSpecsByFilterAndProjection interface is currently non-cacheable.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/CachedStore.java