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Docs: lock statistics to KQP query metrics #30611

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13 changes: 13 additions & 0 deletions ydb/docs/en/core/dev/system-views.md
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Expand Up @@ -228,6 +228,19 @@ Table structure:
| `SumDeleteRows` | Total number of rows deleted.<br/>Type: `Uint64`. |
| `MinDeleteRows` | Minimum number of rows deleted.<br/>Type: `Uint64`. |
| `MaxDeleteRows` | Maximum number of rows deleted.<br/>Type: `Uint64`. |
| `LocksBrokenAsBreaker` | Number of locks that this query broke.<br/>Type: `Uint64`. |
| `LocksBrokenAsVictim` | Number of this query's locks that were broken.<br/>Type: `Uint64`. |

{% note info %}

These lock statistics do not include:

- Locks broken due to schema changes, TTL, async replication
- Locks broken due to partition splits or merges
- Locks broken during tablet restarts
- Locks broken when committing interactive transactions (when COMMIT is executed as a separate statement)

{% endnote %}

### Example queries {#query-metrics-examples}

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13 changes: 13 additions & 0 deletions ydb/docs/ru/core/dev/system-views.md
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Expand Up @@ -228,6 +228,19 @@ WHERE Rank = 1
| `SumDeleteRows` | Общее количество удалённых строк.<br/>Тип: `Uint64`. |
| `MinDeleteRows` | Минимальное количество удалённых строк.<br/>Тип: `Uint64`. |
| `MaxDeleteRows` | Максимальное количество удалённых строк.<br/>Тип: `Uint64`. |
| `LocksBrokenAsBreaker` | Количество блокировок, которые сломал данный запрос.<br/>Тип: `Uint64`. |
| `LocksBrokenAsVictim` | Количество блокировок данного запроса, которые были сломаны.<br/>Тип: `Uint64`. |

{% note info %}

В данную статистику не входят:

- Блокировки, сломанные из-за изменений схемы, TTL, асинхронной репликации
- Блокировки, сломанные из-за разделения или слияния партиций
- Блокировки, сломанные при перезапуске таблеток
- Блокировки, сломанные при коммите интерактивных транзакций (когда COMMIT выполняется отдельным запросом)

{% endnote %}

### Примеры запросов {#query-metrics-examples}

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