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This KB article shows examples on how to apply these two different approaches.`,\"href\":`/ru/resources/support-center/knowledge-base/configuration-settings/about-quotas-and-query-complexity`,\"category\":`Configuration \u0026 settings`,\"tags\":[`Managing Cloud`]},{\"id\":`data-import-export/achieving-atomic-inserts`,\"title\":`Achieving atomic inserts and multi-table consistency in ClickHouse Cloud`,\"description\":`How to load data atomically and keep multiple tables consistent in ClickHouse Cloud without multi-statement transactions, using staging tables and partition-level operations.`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/achieving-atomic-inserts`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Ingestion`,`Best Practices`]},{\"id\":`tables-schema/add-column`,\"title\":`Adding a column to a table`,\"description\":`In this guide, we'll learn how to add a column to an existing table.`,\"href\":`/ru/resources/support-center/knowledge-base/tables-schema/add-column`,\"category\":`Tables \u0026 schema`,\"tags\":[`Data Modelling`]},{\"id\":`configuration-settings/alter-user-settings-exception`,\"title\":`Исключение при изменении пользовательских настроек`,\"description\":`Handing the an exception thrown when altering user settings`,\"href\":`/ru/resources/support-center/knowledge-base/configuration-settings/alter-user-settings-exception`,\"category\":`Configuration \u0026 settings`,\"tags\":[`Settings`,`Errors and Exceptions`]},{\"id\":`materialized-views/are-materialized-views-inserted-asynchronously`,\"title\":`Are Materialized Views inserted synchronously?`,\"description\":`This KB article explores whether Materialized Views are inserted synchronously`,\"href\":`/ru/resources/support-center/knowledge-base/materialized-views/are-materialized-views-inserted-asynchronously`,\"category\":`Materialized views \u0026 projections`,\"tags\":[`Data Modelling`]},{\"id\":`cloud-services/aws-privatelink-setup-for-msk-clickpipes`,\"title\":`AWS PrivateLink setup to expose MSK for ClickPipes`,\"description\":`Setup steps to expose a private MSK via MSK multi-VPC connectivity to ClickPipes.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/aws-privatelink-setup-for-msk-clickpipes`,\"category\":`Cloud`,\"tags\":[`Security and Authentication`,`Managing Cloud`]},{\"id\":`cloud-services/aws-privatelink-setup-for-clickpipes`,\"title\":`AWS PrivateLink setup to expose private RDS for ClickPipes`,\"description\":`Setup steps to expose a private RDS via AWS PrivateLink to ClickPipes.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/aws-privatelink-setup-for-clickpipes`,\"category\":`Cloud`,\"tags\":[`Security and Authentication`,`Managing Cloud`]},{\"id\":`cloud-services/aws-privatelink-vpc-endpoint-service-for-msk-cluster`,\"title\":`Сервис VPC endpoint AWS PrivateLink для кластера MSK`,\"description\":`Шаги по настройке для подключения кластера MSK к ClickPipes через сервисы VPC endpoint AWS PrivateLink.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/aws-privatelink-vpc-endpoint-service-for-msk-cluster`,\"category\":`Cloud`,\"tags\":[`Security and Authentication`,`Managing Cloud`]},{\"id\":`data-management/backing-up-a-specific-partition`,\"title\":`Backing up a specific partition`,\"description\":`How can I backup a specific partition in ClickHouse?`,\"href\":`/ru/resources/support-center/knowledge-base/data-management/backing-up-a-specific-partition`,\"category\":`Data management`,\"tags\":[`Managing Data`]},{\"id\":`general-faqs/key-value`,\"title\":`Can I use ClickHouse as a key-value storage?`,\"description\":`Answers the frequently asked question of whether or not ClickHouse can be used as a key-value storage?`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/key-value`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`general-faqs/time-series`,\"title\":`Can I use ClickHouse as a time-series database?`,\"description\":`Page describing how to use ClickHouse as a time-series database`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/time-series`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`queries-sql/pivot`,\"title\":`Can you PIVOT in ClickHouse?`,\"description\":`ClickHouse doesn't have a PIVOT clause, but we can get close to this functionality using aggregate function combinators. Let's see how to do this using the UK housing prices dataset.`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/pivot`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Data Modelling`,`Core Data Concepts`]},{\"id\":`general-faqs/vector-search`,\"title\":`Can you use ClickHouse for vector search?`,\"description\":`Learn how to use ClickHouse for vector search, including storing embeddings and searching with distance functions like cosine similarity.`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/vector-search`,\"category\":`General \u0026 FAQs`,\"tags\":[`Use Cases`,`Concepts`]},{\"id\":`monitoring-debugging/send-logs-level`,\"title\":`Capturing server logs of queries at the client`,\"description\":\"Learn how to capture server logs at the client level, even with different log settings, using the `send_logs_level` client setting.\",\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/send-logs-level`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Server Admin`]},{\"id\":`configuration-settings/change-the-prompt-in-clickhouse-client`,\"title\":`Change the prompt in clickhouse-client`,\"description\":`В этой статье рассказывается, как изменить промпт в клиенте ClickHouse и терминале clickhouse-local: вместо :) использовать префикс, за которым следует :)`,\"href\":`/ru/resources/support-center/knowledge-base/configuration-settings/change-the-prompt-in-clickhouse-client`,\"category\":`Configuration \u0026 settings`,\"tags\":[`Settings`,`Native Clients and Interfaces`]},{\"id\":`security/common-rbac-queries`,\"title\":`Распространённые запросы RBAC`,\"description\":`Запросы для предоставления определённых разрешений пользователям.`,\"href\":`/ru/resources/support-center/knowledge-base/security/common-rbac-queries`,\"category\":`Security \u0026 access control`,\"tags\":[`Security and Authentication`,`Managing Cloud`]},{\"id\":`queries-sql/comparing-metrics-between-queries`,\"title\":`Сравнение метрик между запросами в децибелах`,\"description\":`Запрос для сравнения метрик между двумя запросами в ClickHouse.`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/comparing-metrics-between-queries`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Performance and Optimizations`]},{\"id\":`troubleshooting/configure-cap-ipc-lock-and-cap-sys-nice-in-docker`,\"title\":`Настройка возможностей CAP_IPC_LOCK и CAP_SYS_NICE в Docker`,\"description\":\"Узнайте, как устранить предупреждения Docker о возможностях `CAP_IPC_LOCK` и `CAP_SYS_NICE` при запуске ClickHouse в контейнере.\",\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/configure-cap-ipc-lock-and-cap-sys-nice-in-docker`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Errors and Exceptions`]},{\"id\":`cloud-services/confluent-cloud-private-connectivity-for-clickpipes`,\"title\":`Частное подключение Confluent Cloud для ClickPipes`,\"description\":`Как подключить ClickPipes к существующему кластеру Confluent Cloud Kafka через AWS PrivateLink или GCP Private Service Connect.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/confluent-cloud-private-connectivity-for-clickpipes`,\"category\":`Cloud`,\"tags\":[`Security and Authentication`,`Managing Cloud`]},{\"id\":`cloud-services/custom-dns-alias-for-instance`,\"title\":`Создание пользовательского псевдонима DNS с помощью обратного прокси`,\"description\":`Узнайте, как настроить пользовательский псевдоним DNS для вашего экземпляра с помощью обратного прокси`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/custom-dns-alias-for-instance`,\"category\":`Cloud`,\"tags\":[`Server Admin`,`Security and Authentication`]},{\"id\":`troubleshooting/part-intersects-previous-part`,\"title\":`DB::Exception: Part XXXXX intersects previous part YYYYY. It is a bug or a result of manual intervention in the ZooKeeper data.`,\"description\":`В этой статье объясняется, как устранить ошибку DB::Exception, связанную с пересекающимися частями в ClickHouse, которая часто вызвана состоянием гонки или ручным вмешательством в данные ZooKeeper.`,\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/part-intersects-previous-part`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Errors and Exceptions`,`System Tables`]},{\"id\":`setup-installation/difference-between-official-builds-and-3rd-party`,\"title\":`Различия между официальными и сторонними сборками ClickHouse`,\"description\":`Узнайте об основных различиях между официальными сборками ClickHouse и сторонними сборками, включая обновления, совместимость и вопросы безопасности.`,\"href\":`/ru/resources/support-center/knowledge-base/setup-installation/difference-between-official-builds-and-3rd-party`,\"category\":`Setup \u0026 installation`,\"tags\":[`Concepts`]},{\"id\":`general-faqs/cost-based`,\"title\":`Есть ли в ClickHouse оптимизатор на основе стоимости?`,\"description\":`ClickHouse имеет определённые механизмы оптимизации на основе стоимости`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/cost-based`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`general-faqs/datalake`,\"title\":`Поддерживает ли ClickHouse озёра данных?`,\"description\":`ClickHouse поддерживает озёра данных, включая Iceberg, Delta Lake, Apache Hudi, Apache Paimon, Hive`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/datalake`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`general-faqs/distributed-join`,\"title\":`Поддерживает ли ClickHouse распределённый JOIN?`,\"description\":`ClickHouse поддерживает распределённый JOIN`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/distributed-join`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`general-faqs/federated`,\"title\":`Поддерживает ли ClickHouse федеративные запросы?`,\"description\":`ClickHouse поддерживает широкий спектр федеративных и гибридных запросов`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/federated`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`general-faqs/concurrency`,\"title\":`Поддерживает ли ClickHouse частые параллельные запросы?`,\"description\":`ClickHouse поддерживает высокий QPS и высокий уровень параллелизма`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/concurrency`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`cloud-services/multi-region-replication`,\"title\":`Поддерживает ли ClickHouse репликацию между регионами?`,\"description\":`На этой странице даётся ответ на вопрос, поддерживает ли ClickHouse репликацию между регионами`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/multi-region-replication`,\"category\":`Cloud`,\"tags\":[]},{\"id\":`general-faqs/updates`,\"title\":`Поддерживает ли ClickHouse обновления в реальном времени?`,\"description\":`ClickHouse поддерживает лёгкие обновления в реальном времени`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/updates`,\"category\":`General \u0026 FAQs`,\"tags\":[]},{\"id\":`security/row-column-policy`,\"title\":`Поддерживает ли ClickHouse безопасность на уровне строк и столбцов?`,\"description\":`Узнайте об ограничениях доступа на уровне строк и столбцов в ClickHouse и ClickHouse Cloud, а также о том, как реализовать управление доступом на основе ролей (RBAC) с помощью политик.`,\"href\":`/ru/resources/support-center/knowledge-base/security/row-column-policy`,\"category\":`Security \u0026 access control`,\"tags\":[`Security and Authentication`]},{\"id\":`cloud-services/execute-system-queries-in-cloud`,\"title\":`Выполнение операторов SYSTEM на всех узлах в ClickHouse Cloud`,\"description\":\"Узнайте, как использовать `ON CLUSTER` и `clusterAllReplicas` для выполнения операторов и запросов SYSTEM на всех узлах сервиса ClickHouse Cloud.\",\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/execute-system-queries-in-cloud`,\"category\":`Cloud`,\"tags\":[`Deployments and Scaling`]},{\"id\":`troubleshooting/count-parts-by-type`,\"title\":`Поиск количества и размеров широких или компактных частей`,\"description\":`В этой статье базы знаний показано, как найти количество частей по их типу — широкие или компактные.`,\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/count-parts-by-type`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Troubleshooting`]},{\"id\":`troubleshooting/fix-developer-verification-error-in-macos`,\"title\":`Исправление ошибки проверки разработчика в macOS`,\"description\":`Узнайте, как устранить ошибку проверки разработчика MacOS при выполнении команд ClickHouse с помощью системных настроек или терминала.`,\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/fix-developer-verification-error-in-macos`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Errors and Exceptions`]},{\"id\":`data-import-export/s3-export-data-year-month-folders`,\"title\":`Как выполнять секционированную запись по году и месяцу в S3?`,\"description\":`Узнайте, как записывать секционированные данные по году и месяцу в корзину S3 в ClickHouse, используя пользовательскую структуру пути для организации данных.`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/s3-export-data-year-month-folders`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Export`,`Native Clients and Interfaces`]},{\"id\":`data-import-export/kafka-clickhouse-json`,\"title\":`Как использовать новый тип данных JSON с Kafka?`,\"description\":`Learn how to load JSON messages from Apache Kafka directly into a single JSON column in ClickHouse using the Kafka table engine and JSON data type.`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/kafka-clickhouse-json`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Formats`,`Data Ingestion`]},{\"id\":`cloud-services/change-billing-email`,\"title\":`Как изменить контактное лицо для выставления счетов в ClickHouse Cloud?`,\"description\":`Let's learn how to change your billing address in ClickHouse Cloud.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/change-billing-email`,\"category\":`Cloud`,\"tags\":[`Managing Cloud`]},{\"id\":`general-faqs/how-do-i-contribute-code-to-clickhouse`,\"title\":`How do I contribute code to ClickHouse?`,\"description\":`ClickHouse is an open-source project developed on GitHub. As customary, contribution instructions are published in CONTRIBUTING file in the root of the source code repository.`,\"href\":`/ru/resources/support-center/knowledge-base/general-faqs/how-do-i-contribute-code-to-clickhouse`,\"category\":`General \u0026 FAQs`,\"tags\":[`Community`]},{\"id\":`data-import-export/parquet-to-csv-json`,\"title\":`Как конвертировать файлы из Parquet в CSV или JSON?`,\"description\":\"Learn how to use ClickHouse's `clickhouse-local` tool to easily convert Parquet files to CSV or JSON formats.\",\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/parquet-to-csv-json`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Sources`,`Data Formats`]},{\"id\":`data-import-export/mysql-to-parquet-csv-json`,\"title\":`Как экспортировать данные MySQL в Parquet, CSV или JSON с помощью ClickHouse`,\"description\":\"Learn how to use the `clickhouse-local` tool to export MySQL data into formats like Parquet, CSV, or JSON quickly and efficiently.\",\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/mysql-to-parquet-csv-json`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Formats`,`Data Export`]},{\"id\":`data-import-export/postgresql-to-parquet-csv-json`,\"title\":`How do I export PostgreSQL data to Parquet, CSV or JSON?`,\"description\":\"Learn how to export PostgreSQL data to Parquet, CSV, or JSON formats using `clickhouse-local` with various examples.\",\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/postgresql-to-parquet-csv-json`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Export`,`Data Formats`]},{\"id\":`setup-installation/install-clickhouse-windows10`,\"title\":`Как установить ClickHouse на Windows 10?`,\"description\":`Learn how to install and test ClickHouse on Windows 10 using WSL 2. Includes setup, troubleshooting, and running a test environment.`,\"href\":`/ru/resources/support-center/knowledge-base/setup-installation/install-clickhouse-windows10`,\"category\":`Setup \u0026 installation`,\"tags\":[`Tools and Utilities`]},{\"id\":`security/remove-default-user`,\"title\":`How do I remove the default user?`,\"description\":`Learn how to remove the default user when running ClickHouse Server.`,\"href\":`/ru/resources/support-center/knowledge-base/security/remove-default-user`,\"category\":`Security \u0026 access control`,\"tags\":[`Server Admin`]},{\"id\":`cloud-services/ingest-failures-23-9-release`,\"title\":`Как устранить сбои приёма данных после выпуска ClickHouse 23.9?`,\"description\":\"Learn how to resolve ingest failures caused by stricter grant checking introduced in ClickHouse 23.9 for tables using `async_inserts`. Update grants to fix errors.\",\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/ingest-failures-23-9-release`,\"category\":`Cloud`,\"tags\":[`Errors and Exceptions`]},{\"id\":`performance-optimization/insert-select-settings-tuning`,\"title\":`How do I solve TOO MANY PARTS error during an INSERT...SELECT?`,\"description\":\"Resolve the TOO_MANY_PARTS error in ClickHouse during an `INSERT...SELECT` by tuning expert-level settings for larger blocks and increasing partition thresholds.\",\"href\":`/ru/resources/support-center/knowledge-base/performance-optimization/insert-select-settings-tuning`,\"category\":`Performance \u0026 optimization`,\"tags\":[`Settings`,`Errors and Exceptions`]},{\"id\":`integrations/node-js-example`,\"title\":`How do I use NodeJS with @clickhouse/client`,\"description\":`Learn how to use @clickhouse/client in a Node.js application to interact with ClickHouse and perform queries.`,\"href\":`/ru/resources/support-center/knowledge-base/integrations/node-js-example`,\"category\":`Integrations \u0026 client libraries`,\"tags\":[`Language Clients`]},{\"id\":`monitoring-debugging/view-number-of-active-mutations`,\"title\":`How do I view the number of active or queued mutations?`,\"description\":\"Monitor the number of active or queued mutations in ClickHouse, especially when performing `ALTER` or `UPDATE` operations. Use the `system.mutations` table for tracking mutations.\",\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/view-number-of-active-mutations`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`System Tables`]},{\"id\":`data-management/read-consistency`,\"title\":`How to achieve data read consistency in ClickHouse?`,\"description\":`Learn how to ensure data consistency when reading from ClickHouse, whether you're connected to the same node or a random node.`,\"href\":`/ru/resources/support-center/knowledge-base/data-management/read-consistency`,\"category\":`Data management`,\"tags\":[`Performance and Optimizations`]},{\"id\":`setup-installation/llvm-clang-up-to-date`,\"title\":`How to build LLVM and clang on Linux`,\"description\":`Commands to build LLVM and clang on Linux.`,\"href\":`/ru/resources/support-center/knowledge-base/setup-installation/llvm-clang-up-to-date`,\"category\":`Setup \u0026 installation`,\"tags\":[`Community`,`Tools and Utilities`]},{\"id\":`data-management/calculate-ratio-of-zero-sparse-serialization`,\"title\":`How to calculate the ratio of empty/zero values in every column in a table`,\"description\":`Learn how to calculate the ratio of empty or zero values in every column of a ClickHouse table to optimize sparse column serialization.`,\"href\":`/ru/resources/support-center/knowledge-base/data-management/calculate-ratio-of-zero-sparse-serialization`,\"category\":`Data management`,\"tags\":[`Performance and Optimizations`]},{\"id\":`security/check-users-roles`,\"title\":`How to Check Users Assigned to Roles and Vice Versa`,\"description\":\"Learn how to query ClickHouse's `system.role_grants` to find users assigned to roles and roles assigned to specific users.\",\"href\":`/ru/resources/support-center/knowledge-base/security/check-users-roles`,\"category\":`Security \u0026 access control`,\"tags\":[`Server Admin`,`System Tables`,`Managing Cloud`]},{\"id\":`monitoring-debugging/which-processes-are-currently-running`,\"title\":`How to check what code is currently running on a server?`,\"description\":\"ClickHouse provides introspection tools like `system.stack_trace` for inspecting what code is currently running on each server thread, helping with debugging and performance monitoring.\",\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/which-processes-are-currently-running`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Server Admin`]},{\"id\":`cloud-services/how-to-check-my-clickhouse-cloud-sevice-state`,\"title\":`Как проверить состояние сервиса ClickHouse Cloud`,\"description\":`Learn how to use the ClickHouse Cloud API to check if your service is stopped, idle, or running without waking it up.`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/how-to-check-my-clickhouse-cloud-sevice-state`,\"category\":`Cloud`,\"tags\":[`Managing Cloud`]},{\"id\":`monitoring-debugging/collect-and-draw-traces`,\"title\":`Как собрать и визуализировать трассировку запроса`,\"description\":`В этом руководстве показано, как собирать и визуализировать трассировки запросов в самостоятельно управляемом ClickHouse с помощью встроенных инструментов или Grafana. Это особенно полезно при работе со сложными запросами, когда необходимо понять внутреннюю механику выполнения за пределами того, что предоставляет EXPLAIN.`,\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/collect-and-draw-traces`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Tools and Utilities`]},{\"id\":`configuration-settings/configure-a-user-setting`,\"title\":`Как настроить параметры для пользователя в ClickHouse`,\"description\":\"Узнайте, как задавать настройки в ClickHouse для отдельных запросов, клиентских сессий или конкретных пользователей с помощью команд `SET` и `ALTER USER`.\",\"href\":`/ru/resources/support-center/knowledge-base/configuration-settings/configure-a-user-setting`,\"category\":`Configuration \u0026 settings`,\"tags\":[`Settings`]},{\"id\":`materialized-views/projection-example`,\"title\":`Как проверить, используется ли проекция в запросе?`,\"description\":`Узнайте, как проверить, используется ли проекция в запросах ClickHouse, тестируя на примерных данных и используя EXPLAIN для подтверждения применения проекции.`,\"href\":`/ru/resources/support-center/knowledge-base/materialized-views/projection-example`,\"category\":`Materialized views \u0026 projections`,\"tags\":[`Data Modelling`]},{\"id\":`cloud-services/how-to-connect-to-ch-cloud-using-ssh-keys`,\"title\":`Как подключиться к ClickHouse с помощью SSH-ключей`,\"description\":`Как подключиться к ClickHouse и ClickHouse Cloud с помощью SSH-ключей`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/how-to-connect-to-ch-cloud-using-ssh-keys`,\"category\":`Cloud`,\"tags\":[`Managing Cloud`,`Security and Authentication`]},{\"id\":`data-management/dictionary-using-strings`,\"title\":`Как создать словарь ClickHouse со строковыми ключами и значениями`,\"description\":`Узнайте, как создать словарь ClickHouse, используя строковые ключи и значения из таблицы MergeTree в качестве источника, с примерами настройки и использования.`,\"href\":`/ru/resources/support-center/knowledge-base/data-management/dictionary-using-strings`,\"category\":`Data management`,\"tags\":[`Data Modelling`]},{\"id\":`tables-schema/how-to-create-table-to-query-multiple-remote-clusters`,\"title\":`Как создать таблицу для запросов к нескольким удалённым кластерам`,\"description\":`Как создать таблицу для запросов к нескольким удалённым кластерам`,\"href\":`/ru/resources/support-center/knowledge-base/tables-schema/how-to-create-table-to-query-multiple-remote-clusters`,\"category\":`Tables \u0026 schema`,\"tags\":[`Deployments and Scaling`]},{\"id\":`setup-installation/enabling-ssl-with-lets-encrypt`,\"title\":`Как включить SSL с Let's Encrypt на одном сервере ClickHouse`,\"description\":`Узнайте, как настроить SSL для одного сервера ClickHouse с помощью Let's Encrypt, включая выпуск сертификата, настройку и проверку.`,\"href\":`/ru/resources/support-center/knowledge-base/setup-installation/enabling-ssl-with-lets-encrypt`,\"category\":`Setup \u0026 installation`,\"tags\":[`Security and Authentication`]},{\"id\":`data-import-export/file-export`,\"title\":`Как экспортировать данные из ClickHouse в файл`,\"description\":\"Узнайте о различных способах экспорта данных из ClickHouse, включая `INTO OUTFILE`, движок таблиц File и перенаправление командной строки.\",\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/file-export`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Export`]},{\"id\":`queries-sql/how-to-filter-a-clickhouse-table-by-an-array-column`,\"title\":`Как фильтровать таблицу ClickHouse по столбцу-массиву?`,\"description\":`Статья базы знаний о том, как фильтровать таблицу ClickHouse по столбцу-массиву.`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/how-to-filter-a-clickhouse-table-by-an-array-column`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Data Modelling`,`Functions`]},{\"id\":`monitoring-debugging/generate-har-file`,\"title\":`Как создать HAR-файл для службы поддержки`,\"description\":`Файл HAR (HTTP Archive) фиксирует сетевую активность в вашем браузере. Он может помочь нашей службе поддержки диагностировать медленную загрузку страниц, неудачные запросы или другие сетевые проблемы.`,\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/generate-har-file`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Tools and Utilities`]},{\"id\":`materialized-views/how-to-display-queries-using-mv`,\"title\":`Как определить запросы, использующие материализованные представления в ClickHouse`,\"description\":`Узнайте, как запрашивать журналы ClickHouse для определения всех запросов, связанных с материализованными представлениями, в заданном временном диапазоне.`,\"href\":`/ru/resources/support-center/knowledge-base/materialized-views/how-to-display-queries-using-mv`,\"category\":`Materialized views \u0026 projections`,\"tags\":[`System Tables`]},{\"id\":`performance-optimization/find-expensive-queries`,\"title\":`Как определить наиболее ресурсоёмкие запросы в ClickHouse`,\"description\":\"Узнайте, как использовать таблицу `query_log` в ClickHouse для определения наиболее ресурсоёмких по памяти и процессору запросов на распределённых узлах.\",\"href\":`/ru/resources/support-center/knowledge-base/performance-optimization/find-expensive-queries`,\"category\":`Performance \u0026 optimization`,\"tags\":[`Performance and Optimizations`]},{\"id\":`configuration-settings/ignoring-incorrect-settings`,\"title\":`Как игнорировать некорректные настройки в ClickHouse`,\"description\":\"Узнайте, как использовать параметр `skip_check_for_incorrect_settings`, чтобы позволить ClickHouse запускаться даже при некорректно заданных настройках уровня пользователя.\",\"href\":`/ru/resources/support-center/knowledge-base/configuration-settings/ignoring-incorrect-settings`,\"category\":`Configuration \u0026 settings`,\"tags\":[`Settings`]},{\"id\":`data-import-export/json-import`,\"title\":`Как импортировать JSON в ClickHouse?`,\"description\":`На этой странице показано, как импортировать JSON в ClickHouse`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/json-import`,\"category\":`Data import \u0026 export`,\"tags\":[]},{\"id\":`setup-installation/how-to-increase-thread-pool-size`,\"title\":`Как увеличить количество потоков в ClickHouse`,\"description\":\"Узнайте, как настроить глобальный пул потоков в ClickHouse, изменяя параметры `max_thread_pool_size`, `thread_pool_queue_size` и `max_thread_pool_free_size`.\",\"href\":`/ru/resources/support-center/knowledge-base/setup-installation/how-to-increase-thread-pool-size`,\"category\":`Setup \u0026 installation`,\"tags\":[`Performance and Optimizations`]},{\"id\":`data-import-export/kafka-to-clickhouse-setup`,\"title\":`Как загружать данные из Kafka в ClickHouse`,\"description\":`Узнайте, как загружать данные из топика Kafka в ClickHouse с помощью движка таблиц Kafka, материализованных представлений и таблиц MergeTree.`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/kafka-to-clickhouse-setup`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Ingestion`]},{\"id\":`data-import-export/ingest-parquet-files-in-s3`,\"title\":`Как загружать файлы Parquet из бакета S3`,\"description\":`Изучите основы использования движка таблиц S3 в ClickHouse для загрузки и запроса файлов Parquet из бакета S3, включая настройку, права доступа и примеры импорта данных.`,\"href\":`/ru/resources/support-center/knowledge-base/data-import-export/ingest-parquet-files-in-s3`,\"category\":`Data import \u0026 export`,\"tags\":[`Data Ingestion`]},{\"id\":`queries-sql/how-to-insert-all-rows-from-another-table`,\"title\":`Как вставить все строки из одной таблицы в другую?`,\"description\":`Статья базы знаний о том, как вставить все строки из одной таблицы в другую.`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/how-to-insert-all-rows-from-another-table`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Data Ingestion`]},{\"id\":`performance-optimization/check-query-processing-time-only`,\"title\":`Как измерить время обработки запроса без возврата строк`,\"description\":\"Узнайте, как использовать параметр `FORMAT Null` в ClickHouse для измерения времени обработки запроса без возврата каких-либо строк клиенту.\",\"href\":`/ru/resources/support-center/knowledge-base/performance-optimization/check-query-processing-time-only`,\"category\":`Performance \u0026 optimization`,\"tags\":[`Performance and Optimizations`]},{\"id\":`cloud-services/opt-out-core-dump-collection`,\"title\":`Как отказаться от сбора отчётов об ошибках`,\"description\":`В этой статье показано, как отказаться от сбора отчётов об ошибках в ClickHouse Cloud`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/opt-out-core-dump-collection`,\"category\":`Cloud`,\"tags\":[`Managing Cloud`]},{\"id\":`monitoring-debugging/outputSendLogsLevelTracesToFile`,\"title\":`How to output send logs level traces to file using the clickhouse-client`,\"description\":`How to output send logs level traces to file using the clickhouse-client`,\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/outputSendLogsLevelTracesToFile`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Data Export`]},{\"id\":`tables-schema/recreate-table-across-terminals`,\"title\":`How to quickly recreate a small table across different terminals`,\"description\":`Learn how to quickly recreate a small table and its data across different terminals using copy/paste for development environments.`,\"href\":`/ru/resources/support-center/knowledge-base/tables-schema/recreate-table-across-terminals`,\"category\":`Tables \u0026 schema`,\"tags\":[`Tools and Utilities`]},{\"id\":`troubleshooting/recovering-from-corrupt-keeper-snapshot`,\"title\":`Как восстановиться после повреждения снимка Keeper`,\"description\":`Статья, описывающая восстановление после повреждения снимка Keeper: как проявляется проблема, что такое снимок и где его найти, а также возможные стратегии восстановления.`,\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/recovering-from-corrupt-keeper-snapshot`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Troubleshooting`]},{\"id\":`troubleshooting/restore-replica-after-storage-failure`,\"title\":`Как восстановить реплику после сбоя хранилища`,\"description\":`В этой статье объясняется, как восстановить данные при использовании реплицированных таблиц в атомарных базах данных ClickHouse, если диски/хранилище одной из реплик утеряны или повреждены.`,\"href\":`/ru/resources/support-center/knowledge-base/troubleshooting/restore-replica-after-storage-failure`,\"category\":`Troubleshooting \u0026 errors`,\"tags\":[`Deployments and Scaling`]},{\"id\":`integrations/how-to-set-up-ch-on-docker-odbc-connect-mssql`,\"title\":`How to set up ClickHouse on Docker with ODBC to connect to a Microsoft SQL Server (MSSQL) database`,\"description\":`How to set up ClickHouse on Docker with ODBC to connect to a Microsoft SQL Server (MSSQL) database`,\"href\":`/ru/resources/support-center/knowledge-base/integrations/how-to-set-up-ch-on-docker-odbc-connect-mssql`,\"category\":`Integrations \u0026 client libraries`,\"tags\":[`Native Clients and Interfaces`]},{\"id\":`queries-sql/using-array-join-to-extract-and-query-attributes`,\"title\":`How to use array join to extract and query varying attributes using map keys and values`,\"description\":`Simple example to illustrate how to use array join to extract and query varying attributes using map keys and values`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/using-array-join-to-extract-and-query-attributes`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Functions`]},{\"id\":`materialized-views/how-to-use-parametrised-views`,\"title\":`How to Use Parameterized Views in ClickHouse`,\"description\":`Learn how to create and query parameterized views in ClickHouse for dynamic data slicing based on query-time parameters.`,\"href\":`/ru/resources/support-center/knowledge-base/materialized-views/how-to-use-parametrised-views`,\"category\":`Materialized views \u0026 projections`,\"tags\":[`Use Cases`]},{\"id\":`tables-schema/exchangeStatementToSwitchTables`,\"title\":`How to use the exchange command to switch tables`,\"description\":`How to use the exchange command to switch tables`,\"href\":`/ru/resources/support-center/knowledge-base/tables-schema/exchangeStatementToSwitchTables`,\"category\":`Tables \u0026 schema`,\"tags\":[`Managing Data`]},{\"id\":`queries-sql/compare-resultsets`,\"title\":`How to Validate if Two Queries Return the Same Result-sets`,\"description\":`Learn how to validate that two ClickHouse queries produce identical result-sets using hash functions and comparison techniques.`,\"href\":`/ru/resources/support-center/knowledge-base/queries-sql/compare-resultsets`,\"category\":`Queries \u0026 SQL`,\"tags\":[`Functions`]},{\"id\":`monitoring-debugging/check-query-cache-in-use`,\"title\":`How to verify query cache usage in ClickHouse`,\"description\":\"Learn how to check if query cache is being utilized in ClickHouse using `clickhouse-client` trace logs or SQL commands.\",\"href\":`/ru/resources/support-center/knowledge-base/monitoring-debugging/check-query-cache-in-use`,\"category\":`Monitoring \u0026 debugging`,\"tags\":[`Performance and Optimizations`]},{\"id\":`cloud-services/unable-to-access-cloud-service`,\"title\":`I am unable to access a ClickHouse Cloud service`,\"description\":`Troubleshooting access issues with ClickHouse Cloud services, including IP Access List configuration`,\"href\":`/ru/resources/support-center/knowledge-base/cloud-services/unable-to-access-cloud-service`,\"category\":`Cloud`,\"tags\":[`Errors and Exceptions`,`Managing Cloud`]},{\"id\":`performance-optimization/finding-expensive-queries-by-memory-usage`,\"title\":`Выявление ресурсоёмких запросов в ClickHouse по использованию памяти`,\"description\":\"Learn how to use the `system.query_log` table to find the most memory-intensive queries in ClickHouse, with examples for clustered and standalone setups.\",\"href\":`/ru/resources/support-center/knowledge-base/performance-optimization/finding-expensive-queries-by-memory-usage`,\"category\":`Performance \u0026 optimization`,\"tags\":[`Performance and Optimizations`]},{\"id\":`data-import-export/importing-and-working-with-json-array-objects`,\"title\":`Importing and Querying JSON Array Objects in 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