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* update presentations * CLICKHOUSE-2936: redirect from clickhouse.yandex.ru and clickhouse.yandex.com * update submodule * lost files * CLICKHOUSE-2981: prefer sphinx docs over original reference * CLICKHOUSE-2981: docs styles more similar to main website + add flags to switch language links * update presentations * Less confusing directory structure (docs -> doc/reference/) * Minify sphinx docs too * Website release script: fail fast + pass docker hash on deploy * Do not underline links in docs * shorter * cleanup docker images * tune nginx config * CLICKHOUSE-3043: get rid of habrastorage links * Lost translation * CLICKHOUSE-2936: temporary client-side redirect * behaves weird in test * put redirect back * CLICKHOUSE-3047: copy docs txts to public too * move to proper file * remove old pages to avoid confusion * Remove reference redirect warning for now * Refresh README.md * Yellow buttons in docs * Use svg flags instead of unicode ones in docs * fix test website instance * Put flags to separate files * wrong flag * Copy Yandex.Metrica introduction from main page to docs * Yet another home page structure change, couple new blocks (CLICKHOUSE-3045) * Update Contacts section * CLICKHOUSE-2849: more detailed legal information * CLICKHOUSE-2978 preparation - split by files * More changes in Contacts block * Tune texts on index page * update presentations * One more benchmark * Add usage sections to index page, adapted from slides * Get the roadmap started, based on slides from last ClickHouse Meetup * CLICKHOUSE-2977: some rendering tuning * Get rid of excessive section in the end of getting started * Make headers linkable * CLICKHOUSE-2981: links to editing reference - https://github.com/yandex/ClickHouse/issues/849 * CLICKHOUSE-2981: fix mobile styles in docs * Ban crawling of duplicating docs * Open some external links in new tab * Ban old docs too * Lots of trivial fixes in english docs * Lots of trivial fixes in russian docs * Remove getting started copies in markdown * Add Yandex.Webmaster * Fix some sphinx warnings * More warnings fixed in english docs * More sphinx warnings fixed * Add code-block:: text * More code-block:: text * These headers look not that well * Better switch between documentation languages * merge use_case.rst into ya_metrika_task.rst * Edit the agg_functions.rst texts * Add lost empty lines
20 lines
1.3 KiB
ReStructuredText
20 lines
1.3 KiB
ReStructuredText
system.parts
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------------
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Contains information about parts of a table in the MergeTree family.
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Columns:
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.. code-block:: text
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database String - Name of the database where the table that this part belongs to is located.
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table String - Name of the table that this part belongs to.
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engine String - Name of the table engine, without parameters.
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partition String - Name of the partition, in the format YYYYMM.
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name String - Name of the part.
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replicated UInt8 - Whether the part belongs to replicated data.
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active UInt8 - Whether the part is used in a table, or is no longer needed and will be deleted soon. Inactive parts remain after merging.
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marks UInt64 - Number of marks - multiply by the index granularity (usually 8192) to get the approximate number of rows in the part.
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bytes UInt64 - Number of bytes when compressed.
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modification_time DateTime - Time the directory with the part was modified. Usually corresponds to the part's creation time.
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remove_time DateTime - For inactive parts only - the time when the part became inactive.
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refcount UInt32 - The number of places where the part is used. A value greater than 2 indicates that this part participates in queries or merges.
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