Release proposal: Nightly v0.7

[BohuTANG]

Summary

Release name: v0.7-nightly, get in the train now ✋

Checklist

Stable checklist

• Support create table as/like query #2457
• DateTime64 DataType support #3338
• [metasrv] replace arrow flight service with gRPC for metasrv #3605
• MetaApi supports multi tenant #3759
• Add partitions_scanned and partitions_total to Statistics #3906
• SHOW ENGINES Statement #3206
• Feature: full support of group by nullable column #4079

Experimental checklist

• query server: async-await mysql-srv #3437
• Add filters pushdown for read datasource #3512
• Support user defined functions #3440
• Add management-mode for databend #3740
• Sticky IPs for MetaSrv when MetaSrv restart #4089
• Implicit cast from Boolean to UInt8 #3291
• Add database_id/table_id to data file prefix #4242
• Copy INTO <table> from external location  #3586 (@BohuTANG )
• Add version to storage layout for upgrade #4243
• create user can not login  #4326 (@youngsofun )
• Add escape for management key #3792

Website checklist

• Tracking issue of use docusaurus to build our website #3209

Testing checklist

• Continuous Benchmarking #3084
• [Test/Integration/Tracking] implement generic test framework for integration test #2647
• Re-organise our building systems #3419

Rolling to next version(Nightly v0.8) checklist

• Fine-grained user privilege on database & table #2894
• [functions] more functions working with string #3004
• Stage statement #3429
• Database sharing #3430
• Global settings #3933

Archive releases

• Release proposal: Nightly v0.6 #2525
• Release proposal: Nightly v0.5 #2257

Reference

What's Databend release channels?
Nightly v0.7 is part of our Roadmap 2022
Community website: https://databend.rs

[ZhiHanZ]

I think for test checklist, refactor build system could be done in nightly 0.7 including

1. test framework([Test/Integration/Tracking] implement generic test framework for integration test #2647)
2. remove unneeded scripts, python, mysql client etc (Re-organise our building systems #3419)

[Xuanwo]

I'm interested to add some job on dal in v0.7, so that we can:

• dal: Refactor to make it easier for contributors to add new storage type #3436
• dal: Add integration tests target on production services apache/opendal#8

All of those issues are belong to #3677

[BohuTANG]

Due to the Chinese Lunar New Year 2022, we will have a delay in this version, happy Chinese New Year 🐯 !

[BohuTANG]

Update:
The Nightly v0.7 will wait for #3586 to be done.

[BohuTANG]

High Priority Tasks for v0.7 version:

Query

• Copy INTO <table> from external location  #3586 (@BohuTANG )

Storage

• Add version to storage layout for upgrade #4243 (@dantengsky )
• Add database_id/table_id to data file prefix #4242

OpenDAL (COPY command needs)

• Implement List support apache/opendal#12 (@Xuanwo )
• Parallel read performance degradation apache/opendal#72 (@Xuanwo @dantengsky )
• backend/s3: Anonymous access not supported apache/opendal#54 (@Xuanwo )

[BohuTANG]

https://databend.rs/blog/databend-0-7-0-release