ydb/yql/essentials/core/expr_nodes, branch main

Watermarks: YQL: allow watermark options

2026-07-14T13:02:19Z

#### Allow watermark options in YQL ✎ - Extend watermark functionality to support additional configuration options such as watermark granularity and idle timeout - Modify internal representation to include watermark settings as a separate parameter in watermark generator nodes - Update SQL parser to recognize and process watermark-related hints with proper validation - Add validation logic to ensure watermark options conform to expected format and types - Introduce unit tests to verify the new watermark option parsing and handling Autodescription by Yandex Code Assistant commit_hash:76e9ae7e1709a2bcd8cd2ccaaf132ceedac0517f

KIKIMR-25621: Introduce multi-column statistics

2026-07-07T09:26:27Z

#### Introduce multi-column statistics support ✎ - Adds support for defining multi-column statistics in table schemas, allowing users to specify statistics for combinations of columns rather than individual columns - Introduces new SQL syntax for CREATE TABLE and ALTER TABLE statements to declare statistics with optional type specifications - Implements validation for statistics definitions, ensuring column references are valid and names are unique - Extends the query processing pipeline to handle statistics declarations during table creation and modification operations - Updates syntax highlighting and parsing rules to recognize the new statistics keyword and related constructs - Adds comprehensive unit tests covering various statistics scenarios including multi-column definitions, type specifications, and validation rules Autodescription by Yandex Code Assistant commit_hash:5ca3f8721d3e3660f2bb890c1408e420cf7c3e81

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-21246: Propagate ExtractMembers over TableSource

2026-05-27T17:24:27Z

commit_hash:048f5c5f1cf2f507a91c2f4cdb24aec0cc71a004

WATERMARKS: YQL: Introduce WATERMARK = expr

2026-05-18T21:16:27Z

Introduce `WATERMARK = expr` in arbitrary place in the query commit_hash:3ac51a6e2b9f8e4079d1e3fd2e37fa8217582598

Pushdown/fuse Filter + CalcOverWindow

2026-04-20T09:51:06Z

commit_hash:198ce0c7875d77fab8082382d915bf1261775f68

YQL-20095: Enable modernize-use-using

2026-03-04T06:09:34Z

commit_hash:ea1f0987ec40e3e683c35bffb64b7f5ab35e73ed

YQL-20095: Enable modernize-pass-by-value

2026-03-02T08:32:11Z

commit_hash:4939dfad654f18bb31e40711ee0c39063889f17b

YQL-20095: Enable modernize-concat-nested-namespaces

2026-02-17T16:01:58Z

commit_hash:2c0e0389bf5eca0c8334d55143674a8acf94a88d

YQL-20095: Enable google-explicit-constructor

2026-01-23T13:17:10Z

commit_hash:4d77ad10fd4db303459ec4e45e139967c7fc8196