v0.7.2 ​

Release date: April 08, 2024

This is a patch release, containing a critial bug fix to avoid wrongly delete data files (#3635).

It's highly recommended to upgrade to this version if you're using v0.7.

Breaking changes ​

• refactor!: Renames the new memtable to PartitionTreeMemtable by @evenyag in #3547
• fix!: columns table in information_schema misses some columns by @killme2008 in #3639

🚀 Features ​

• feat: Partition memtables by time if compaction window is provided by @evenyag in #3501
• feat: acquire all locks in procedure by @WenyXu in #3514
• feat: implement the drop database parser by @WenyXu in #3521
• feat(mito): Checks whether a region should flush periodically by @evenyag in #3459
• feat(metasrv): implement maintenance by @tisonkun in #3527
• feat: update dashboard to v0.4.9 by @ZonaHex in #3531
• feat: support per table memtable options by @evenyag in #3524
• feat(flow): shared in-memory state for dataflow operator by @discord9 in #3508
• feat: update pgwire to 0.20 for improved performance by @sunng87 in #3538
• feat: support multi params in promql range function macro by @Taylor-lagrange in #3464
• feat: support append-only mode in time-series memtable by @v0y4g3r in #3540
• feat: Able to pretty print sql query result in http output by @YCCDSZXH in #3539
• feat: return new added columns in region server's extension response by @waynexia in #3533
• feat: update physical table's schema on creating logical table by @waynexia in #3570
• feat: implement the drop database procedure by @WenyXu in #3541
• feat: batch alter logical tables by @fengjiachun in #3569
• feat: support time range in copy table by @v0y4g3r in #3583
• feat: update physical table schema on alter logical tables by @fengjiachun in #3585
• feat(auth): watch file user provider by @tisonkun in #3566
• feat: Support printing postgresql's bytea data type in its "hex" and "escape" format by @J0HN50N133 in #3567
• feat: Implement append mode for a region by @evenyag in #3558
• feat: create regions persist true by @fengjiachun in #3590
• feat: remove support for logical tables in the create table procedure by @fengjiachun in #3592
• feat: adds metric engine to information_schema engines table by @killme2008 in #3599
• feat: support 2+2 and /status/buildinfo by @waynexia in #3604
• feat(tql): add initial support for start,stop,step as sql functions by @etolbakov in #3507
• feat: Implement an unordered scanner for append mode by @evenyag in #3598
• feat: allow cross-schema query in promql by @sunng87 in #3545
• feat: let alter table procedure can only alter physical table by @fengjiachun in #3613
• feat(function): add timestamp epoch integer support for to_timezone by @etolbakov in #3620
• feat: impl show index and show columns by @killme2008 in #3577
• feat: group requests by peer by @fengjiachun in #3619
• feat: Support outputting various date styles for postgresql by @J0HN50N133 in #3602
• feat: reject invalid timestamp ranges in copy statement by @v0y4g3r in #3623
• feat(procedure): auto split large value to multiple values by @WenyXu in #3605
• feat(procedure): enable auto split large value by @WenyXu in #3628
• feat: introduce wal benchmarker by @niebayes in #3446
• feat: adding victoriametrics remote write by @sunng87 in #3641
• feat: Add timers to more mito methods by @evenyag in #3659
• feat: cluster information by @fengjiachun in #3631
• feat: update dashboard to v0.4.10 by @ZonaHex in #3663

🐛 Bug Fixes ​

• fix: clone data instead of moving it - homemade future is dangerous by @waynexia in #3542
• fix: performance degradation caused by config change by @v0y4g3r in #3556
• fix(flow): Arrange get range with batch unaligned by @discord9 in #3552
• fix: set http response chartset to utf-8 when using table format by @xxxuuu in #3571
• fix: update pk_cache in compat reader by @waynexia in #3576
• fix: incorrect version info in by @waynexia in #3586
• fix: canonicalize catalog and schema names by @killme2008 in #3600
• fix: adjust status code to http error code map by @waynexia in #3601
• fix: run purge jobs in another scheduler by @evenyag in #3621
• fix: mistakely removes compaction inputs on failure by @v0y4g3r in #3635
• fix: move object store read/write timer into inner by @dimbtp in #3627
• fix: construct correct pk list with pre-existing pk by @waynexia in #3614

🚜 Refactor ​

• refactor: remove removed-prefixed keys by @WenyXu in #3535
• refactor: introduce the DropTableExecutor by @WenyXu in #3534
• refactor: refactor CacheInvalidator by @WenyXu in #3550
• refactor: handle error for http format by @tisonkun in #3548
• refactor: remove redudant PromStoreProtocolHandler::write by @v0y4g3r in #3553
• refactor: reduce one clone by carefully pass ready boundary by @tisonkun in #3543
• refactor: try upgrade regex-automata by @tisonkun in #3575
• refactor: refactor drop table executor by @WenyXu in #3589
• refactor(table): remove unused table requests by @zhongzc in #3603
• refactor: cache invalidator by @fengjiachun in #3611
• refactor: alter logical tables by @fengjiachun in #3618
• refactor: move create database to procedure by @CookiePieWw in #3626
• refactor: drop Table trait by @tisonkun in #3654

📚 Documentation ​

• docs: add v0.7 TSBS benchmark result by @evenyag in #3512
• docs: revise README file by @tisonkun in #3522
• docs: readme style and project status by @tisonkun in #3528
• docs: improve fn comments by @tisonkun in #3526

🧪 Testing ​

• test: add a parameter type mismatch test case to sql integration test by @xxxuuu in #3568
• test: add tests for drop databases by @WenyXu in #3594
• test: add more integration test for kafka wal by @niebayes in #3190
• test(sqlness): release databases after tests by @WenyXu in #3648

⚙️ Miscellaneous Tasks ​

• ci: add bin options to reduce build burden by @WenyXu in #3518
• ci: unassign issues stale 14 days ago by @tisonkun in #3529
• feat: http header with metrics by @shuiyisong in #3536
• chore: avoid unnecessary cloning by @fengjiachun in #3537
• chore: fix comment in fetch-dashboard-assets.sh by @tisonkun in #3546
• ci: use a PAT to list all writers by @tisonkun in #3559
• chore: avoid confusing TryFrom by @tisonkun in #3565
• chore: retain original headers by @tisonkun in #3572
• ci: use single commit on the deployment branch by @evenyag in #3580
• chore: limit OpenDAL's feature gates by @waynexia in #3584
• chore: Delete CODE_OF_CONDUCT.md by @tisonkun in #3578
• chore: add back core dependency by @shuiyisong in #3588
• chore: do not reply for broadcast msg by @fengjiachun in #3595
• ci: ignore type in sqlness sql and result files by @waynexia in #3616
• ci: bump license header checker action version by @tisonkun in #3655
• chore: generate release notes with git-cliff by @tisonkun in #3650
• chore: add manifest related metrics by @MichaelScofield in #3634
• chore: bump version to 0.7.2 by @waynexia in #3658

Build ​

• build(deps): remove some unused dependencies by @dimbtp in #3582
• build(deps): bump h2 from 0.3.24 to 0.3.26 by @dependabot[bot] in #3642
• build(deps): bump whoami from 1.4.1 to 1.5.1 by @dependabot[bot] in #3643

New Contributors ​

• @CookiePieWw made their first contribution in #3626
• @xxxuuu made their first contribution in #3571
• @YCCDSZXH made their first contribution in #3539

All Contributors ​

We would like to thank the following contributors from the GreptimeDB community:

@CookiePieWw, @J0HN50N133, @MichaelScofield, @Taylor-lagrange, @WenyXu, @YCCDSZXH, @ZonaHex, @dimbtp, @discord9, @etolbakov, @evenyag, @fengjiachun, @killme2008, @niebayes, @shuiyisong, @sunng87, @tisonkun, @v0y4g3r, @waynexia, @xxxuuu, @zhongzc