2.3.0

What's Changed

Reference relations

• Add additional reference relation syntax & test by @reshke in #858 #904
• Fix reference relation processing + add test by @reshke in #916 #919
• More tests cases for reference relations by @reshke in #943

Debug features

• Add router config validation by @EinKrebs in #883
• Add test-config command to SPQR binaries by @EinKrebs in #884
• Multi-shard DDL support v2 by @Denchick in #892
• Watch routers iteration timeout by @Denchick in #903
• Add Ignore_cancel param to router by @Denchick in #937 #938 #939
• Add show instance support by @reshke in #942
• Add acceptor buffer size by @Denchick in #944
• Limit concurrent TLS handshake etc activities by @reshke in #960

Engine v2

• Engine v2 support for reference relation modification by @reshke in #946
• One step towards engine v2 by @reshke in #950
• Support engine v2 distributed relation sql. Refactor internals by @reshke in #951
• Add error param to engine V2 planner. Remove DummyPlan. by @reshke in #955
• Refactor. Unite MultiShardState with Scatter plan by @reshke in #956
• Import ddl logic from Planner V1 into engine V2 by @reshke in #971
• Futher split Qrouter logic into reusable parts by @reshke in #973
• Futher refactor proxy routing logic by @reshke in #975

Fixes, Tests, Documentation

• Add unit tests to proxy_routing.go by @Denchick in #877
• Refactored & simplyfied ugly hack in proxy_routing.go by @Denchick in #875
• Small code tweak by @reshke in #879
• Add regression tests for part tables by @reshke in #881
• minor pkg/datashard/datashard.go refactoring by @Denchick in #878
• Return correct logic to proxy routing by @reshke in #880
• better 'not implemented' messages by @Denchick in #889 #890
• Fix & enable JDBC integration test by @EinKrebs in #893
• Fix some typos by @EinKrebs in #896
• Remove clmp mutex by @reshke in #899
• better panic message by @Denchick in #900
• Remove lock by @reshke in #901
• Drop RequestData() by @Denchick in #895
• more DBPool Tests by @reshke in #906
• Minor enhancement of coordinator log messages by @Denchick in #898
• Topology refactoring by @Denchick in #908
• Explain InsecureSkipVerify by @Denchick in #909
• Remove locking in route pool by @reshke in #905
• Update dbpool.go: remove shuffle host from auxular creartion methoods. by @reshke in #907
• Do not miss error messages handling cancel request by @Denchick in #910
• Router config reload fixes by @Denchick and @reshke in #917 #929 #941
• Update interactor.go: fix typo by @reshke in #918
• Tweaks by @reshke in #922
• Rename variable by @reshke in #923
• Remove world shard support (temporary) by @reshke in #924
• Virtual param fixes by @reshke in #925
• Add REDISTRIBUTE command documentation by @Denchick in #926
• Remove relay.TxActive() by @Denchick in #927
• Safe remove some fields from relay.go by @Denchick in #928
• Do not pass config.router to MatchConnectionPooler by @Denchick in #930
• Fix schema cache for local router. Fix copy for already-routed connections. by @reshke in #931
• Add pooler tests (LOCAL router) by @reshke in #932
• Remove contension on client pool by @reshke in #934
• Fix coordinator log msg by @reshke in #935
• Better id for logging by @reshke in #940
• Lower logging level of specific types of errors by @reshke in #945
• Add another feature test for 'REDISTRIBUTE KEY RANGE' by @EinKrebs in #947
• Add more shards to regress tests by @reshke in #952
• remove routingstate.DatashardRoute. by @reshke in #953
• Remove routingstate package by @reshke in #954
• More logging for connection setup phase by @reshke in #959
• Fix linter by @EinKrebs in #961
• Versioned pg regression tests by @EinKrebs in #964
• Add COPY FROM documentation by @Denchick in #969
• Always allow distributed bulk copy by @Denchick in #968
• Refactor query routing internals. Separate rmeta-related logic. by @reshke in #970
• Fix errors in comments by @visill in #972
• Remove ununed structs by @reshke in #974

Other

• Prepared statements with multishard DDL by @EinKrebs in #958 #962
• INVALIDATE CACHE by @diPhantxm and @Denchick in #874 #886
• Bumps by @dependabot in #876 #872 #888 #885 #902 #914 #915 #936 #933 #949 #967 #963 #977 #976
• Bump lyx by @reshke in #948

Full Changelog: 2.2.0...2.3.0