fqaiser94 commented on code in PR #892: URL: https://github.com/apache/iceberg-rust/pull/892#discussion_r1926260077
########## crates/iceberg/src/puffin/blob.rs: ########## @@ -0,0 +1,38 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +use std::collections::HashMap; + +/// A serialized form of a "compact" Theta sketch produced by the Apache DataSketches library. +pub(crate) const APACHE_DATASKETCHES_THETA_V1: &str = "apache-datasketches-theta-v1"; + +/// The blob +#[derive(Debug, PartialEq, Clone)] +pub(crate) struct Blob { + /// See blob types: https://iceberg.apache.org/puffin-spec/#blob-types + pub(crate) r#type: String, + /// List of field IDs the blob was computed for; the order of items is used to compute sketches stored in the blob. + pub(crate) fields: Vec<i32>, + /// ID of the Iceberg table's snapshot the blob was computed from + pub(crate) snapshot_id: i64, + /// Sequence number of the Iceberg table's snapshot the blob was computed from + pub(crate) sequence_number: i64, + /// The actual blob data + pub(crate) data: Vec<u8>, Review Comment: > Should we add comment to explain that this is always uncompressed data? Done. > Or can we include a CompressionCodec in the Blob to indicate the compress method? (we can do this in a follow-up PR) I can see where you're coming from and while I'm not completely opposed to the idea, I think I prefer to return the uncompressed data at this point. I will also note that the Java PuffinReader API does the same i.e. always returns the data after decompression. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
