emkornfield commented on a change in pull request #164: URL: https://github.com/apache/parquet-format/pull/164#discussion_r541126494
########## File path: CoreFeatures.md ########## @@ -0,0 +1,181 @@ +<!-- + - 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. + --> + +# Parquet Core Features + +This document lists the core features for each parquet-format release. This +list is a subset of the features which parquet-format makes available. + +## Purpose + +The list of core features for a certian release makes a compliance level that +the different implementations can tied to. If an implementation claims that it +provides the functionality of a parquet-format release core features it must +implement all of the listed features according the specification (both read and +write path). This way it is easier to ensure compatibility between the +different parquet implementations. +We cannot and don't want to stop our clients to use any features that are not +on this list but it shall be highlighted that using these features might make +the written parquet files unreadable by other implementations. We can say that +the features available in a parquet-format release (and one of the +implementations of it) and not on this list are experimental. Review comment: ```suggestion implementations of it) and not on the core feature list are experimental. ``` ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
