ydb/yql/essentials, branch main

YQL-21401: Enable yql_libs in purecalc & embedded

2026-07-24T14:31:53Z

#### Enable yql_libs support in purecalc and embedded modes ✎ - Updated internal data handling to properly manage user data tables by value instead of const reference, enabling correct transfer and usage of library blocks - Implemented logic to identify and mark YQL library blocks in user data, ensuring they are properly recognized and utilized during query compilation - Enhanced embedded mode to automatically enable YQL library usage, allowing seamless integration of YQL libraries without explicit configuration - Applied necessary code adjustments and fixes to maintain compatibility and proper functionality across the modified components Autodescription by Yandex Code Assistant commit_hash:937c4d3fa5fb566a256cc3d1d164bf4796a3ec44

Fix handling SessionWindow without session columns

2026-07-24T12:59:01Z

#### Fix handling of SessionWindow without session columns ✎ - Corrected logic for detecting and handling SessionWindow operations when no session columns are specified, ensuring proper validation and error reporting - Updated type annotation checks to correctly identify session windows and prevent unsupported WinFilter usage with them - Added test case to verify correct behavior when SessionWindow is used without explicit session columns, preventing incorrect fusion of filters with such windows Autodescription by Yandex Code Assistant commit_hash:9ee57415718e3b085d3eebf843a30a7e919f5e5e

Intermediate changes

2026-07-24T10:46:37Z

commit_hash:c6d6cae76698798d837871b1712e42a66e6da45d

YQL-21229: UDF setting extra memory validation

2026-07-24T08:57:53Z

#### UDF extra memory setting validation and normalization ✎ - Added validation and parsing for UDF `extraMem` settings to ensure proper memory allocation values - Implemented support for human-readable size formats (like '1G', '512M', '1T', '512K') in addition to raw byte values - Introduced automatic normalization of parsed size values back to raw byte format in UDF settings - Added error handling with descriptive messages for invalid `extraMem` setting values - Enhanced type annotation processing to handle modified settings and repeat transformation when changes occur Autodescription by Yandex Code Assistant commit_hash:3b218a0739e0f917bb2470cd25ed2c8b75781345

Do not fuse Filter with CalcOverSessionWindow

2026-07-23T19:01:28Z

#### Prevent Fusion of Filter with Session Window Calculations ✎ - Disable the optimization that fuses filter operations with calculations over session windows to avoid incorrect query execution. - Update type annotation logic to explicitly reject `WinFilter` usage in conjunction with session windows. - Add validation to ensure session window calculations are not incorrectly transformed when filter operations are present. - Introduce new test cases to verify that filters are not fused with session window calculations and maintain expected query behavior. Autodescription by Yandex Code Assistant commit_hash:99454a5276ec896a68b5dc6339ab0b922e31d85e

Intermediate changes

2026-07-23T16:44:21Z

commit_hash:e9f9f235622634ecdf8656af507d5c1ba8dc0375

Add CREATE IF NOT EXISTS, CREATE OR REPLACE, ALTER/DROP IF EXISTS for SECRET operations

2026-07-23T13:17:44Z

#### Add CREATE IF NOT EXISTS, CREATE OR REPLACE, ALTER/DROP IF EXISTS for SECRET operations ✎ - Introduce support for `CREATE IF NOT EXISTS` and `CREATE OR REPLACE` syntax for secret creation, allowing conditional secret creation based on existence - Add `ALTER IF EXISTS` and `DROP IF EXISTS` syntax for secret modification and deletion, preventing errors when operating on non-existent secrets - Extend secret operation parsing to handle optional keywords for conditional operations while maintaining backward compatibility - Update secret parameter validation and error handling to support new conditional operation modes - Add comprehensive test coverage for all new conditional secret operations including error cases and expression support Autodescription by Yandex Code Assistant commit_hash:5da22cd6acc7bb610627c562280556c497d57a10

Intermediate changes

2026-07-23T11:05:51Z

commit_hash:4ba4a26693c83da36f04b37dacf002e9edb20dab

yql/minikql: make TSystemMmap and TFakeMmap singletones

2026-07-23T10:34:43Z

Now `TSystemMmap` and `TFakeMmap` outlive `TGlobalPools` , so `~TGlobalPools` can safely access `Munmap`. commit_hash:fe361eb1d843ffc7b6dcd72ae1ec41242cf2398f

Move CommonJoinCore temp values into a pinned boxed holder to fix MSan use-after-dtor

2026-07-23T09:10:44Z

#### Fix use-after-dtor issue in CommonJoinCore by pinning temporary values ✎ - Replaced direct usage of context mutable values with a dedicated boxed holder for temporary join state to prevent use-after-dtor errors - Introduced a new structure to manage staging buffers for join operations, ensuring proper lifetime management - Modified the join core to pin temporary values in a boxed context, preventing access to destroyed sibling slots during teardown - Updated value access patterns to retrieve temporary data from the pinned boxed holder instead of direct mutable value indices - Simplified index management by removing explicit index tracking in favor of centralized temporary value handling Autodescription by Yandex Code Assistant commit_hash:068515c36c3460cb53bbaaacb7c10c85f1d389dd