Release v0.4.2

What's Changed

We recommend all users currently using version v0.4 to upgrade to this version, as there is a serious bug in the query filter pushdown for memtable.

Highlights

Main changes:

• Row protocol support for OpenTSDB,
• The implementation of HistogramFold plan for Prometheus histogram type.
• There are also important bug fixes, such as the correction of range behavior in MemoryKvBackend & RaftEngineBackend, and the query predicates use the wrong schema to create physical expressions. #2642
• Additionally, we've made several updates to our CI/CD processes for better efficiency and communication.

Features

• Get the internal value size of ValueRef by @QuenKar. #2613
• Row protocol support for opentsdb by @Lilit0x. #2623
• Implement HistogramFold plan for Prometheus histogram type by @waynexia. #2626
• RepeatedTask adds execute-first-wait-later behavior by @paomian. #2625
• Ports InMemoryRowGroup from parquet crate by @evenyag. #2633
• Implement ObjectStoreManager for custom_storage by @NiwakaDev. #2621
• Hide internal error and unknown error message from end user by @sunng87. #2544
• Initial OTLP trace support by @yuanbohan. #2627
• Lookup manifest file size by @QuenKar. #2590
• Create_or_open always set writable by @QuenKar. #2641

Bug Fixes

• Correct the range behavior in MemoryKvBackend & RaftEngineBackend by @WenyXu. #2615
• Pass datanode config file in distributed mode sqlness by @waynexia. #2631
• Predicate shall use real schema to create physical exprs by @v0y4g3r. #2642

Others

• The 'publish-github-release' and 'release-cn-artifacts' have to wait for all the artifacts are built by @zyy17. #2622
• Remove the old version python by @zyy17. #2624
• Add slack notification for nightly ci failure by @sunng87. #2617
• Add size labeler by @waynexia. #2628
• Upgrade 0.4.2 by @daviderli614. #2644

Full Changelog: v0.4.1...v0.4.2