ydb/yql/essentials/data/language/features.json, branch main

SQL parser + type annotation for Materialize statement

2026-06-18T17:38:07Z

#### SQL Parser and Type Annotation for Materialize Statement ✎ - Added support for the `MATERIALIZE` SQL statement including parser rules and syntax highlighting updates - Implemented type annotation and validation for the `MATERIALIZE` statement with proper error handling - Enhanced SQL query processing to handle `MATERIALIZE` statements in various contexts including subqueries and limited views - Added runtime support for `MATERIALIZE` operations with sort preservation and proper data sink handling - Integrated `MATERIALIZE` into the SQL grammar and updated completion suggestions - Added comprehensive unit tests covering various `MATERIALIZE` scenarios and edge cases Autodescription by Yandex Code Assistant commit_hash:32b04f93ceadf624b4d39fd6512798f9354bfd80

YQL-21111: Introduce feature registry

2026-05-27T12:01:46Z

A feature registry lets us to reference features by name, rather than a concrete langver. It makes easier to find feature references and releasing incubating features (under max langver during the development). Features are described at `yql/essentials/data/language/features.json` and the C++ code is generated. The unit `feature.h` also introduces a convenience functions to check a feature availability and emit a standard error message. All features in the translator where replaced with named. commit_hash:c47f540536212a65f7bc5e8dc6051e73d006be8d

YQL-21210 new lang ver

2026-05-07T13:44:17Z

commit_hash:23ab69eb08e7c8f74df14dfc43e6109479b8dd15

YQL-20998: Remove EmitReadsForExists

2026-03-05T19:56:51Z

Removed a check and usages of `EmitReadsForExists` from the `yql/essentials`. There are a lot of YQLs code recanonized because sometimes an extra block with return was emitted and sometimes is not, but the YQLs is equivalent. commit_hash:a4ec2a575177eff4063da017b4d9ee96e06f3740

YQL-21007 new lang ver

2026-03-04T19:13:38Z

commit_hash:f9d592aaafd658d9c44bb4f7299a527c22593569

YQL-13448: Move to 2026.01 langver

2026-03-04T15:01:22Z

commit_hash:2a06f3cce5a5f3c0855906fcfc44690a8af0a609

Intermediate changes

2026-03-03T07:41:31Z

commit_hash:ee3eb618828d61c8a676898641ff080a749a6b96