ClickHouse/docs/en/system_tables/system.merges.rst

system.merges
-------------
Contains information about merges currently in process for tables in the MergeTree family.

Columns:

.. code-block:: text

  database String                    - Name of the database the table is located in.
  table String                       - Name of the table.
  elapsed Float64                    - Time in seconds since the merge started.
  progress Float64                   - Percent of progress made, from 0 to 1.
  num_parts UInt64                   - Number of parts to merge.
  result_part_name String            - Name of the part that will be formed as the result of the merge.
  total_size_bytes_compressed UInt64 - Total size of compressed data in the parts being merged.
  total_size_marks UInt64            - Total number of marks in the parts being merged.
  bytes_read_uncompressed UInt64     - Amount of bytes read, decompressed.
  rows_read UInt64                   - Number of rows read.
  bytes_written_uncompressed UInt64  - Amount of bytes written, uncompressed.
  rows_written UInt64                - Number of rows written.
Initial commit if EN docs 2017-04-03 19:49:50 +00:00			`system.merges`
			`-------------`
System tables 2017-04-26 17:37:55 +00:00			`Contains information about merges currently in process for tables in the MergeTree family.`
Initial commit if EN docs 2017-04-03 19:49:50 +00:00
System tables 2017-04-26 17:37:55 +00:00			`Columns:`
Fixed newlines in .rst files before code blocks [#CLICKHOUSE-2]. for i in $(find . -name '*.rst'); do grep -F -q '.. code-block:: ' $i && cat $i \| sed -r -e 's/$/<NEWLINE>/' \| tr -d '\n' \| sed -r -e 's/([^>])<NEWLINE>.. code-block::/\1<NEWLINE><NEWLINE>.. code-block::/g' \| sed -r -e 's/<NEWLINE>/\n/g' > ${i}.tmp && mv ${i}.tmp ${i}; done 2017-06-13 20:35:07 +00:00
CLICKHOUSE-2720: progress on website (#865) * 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 2017-06-13 04:15:47 +00:00			`.. code-block:: text`

System tables 2017-04-26 17:37:55 +00:00			`database String - Name of the database the table is located in.`
			`table String - Name of the table.`
			`elapsed Float64 - Time in seconds since the merge started.`
			`progress Float64 - Percent of progress made, from 0 to 1.`
			`num_parts UInt64 - Number of parts to merge.`
			`result_part_name String - Name of the part that will be formed as the result of the merge.`
			`total_size_bytes_compressed UInt64 - Total size of compressed data in the parts being merged.`
			`total_size_marks UInt64 - Total number of marks in the parts being merged.`
			`bytes_read_uncompressed UInt64 - Amount of bytes read, decompressed.`
			`rows_read UInt64 - Number of rows read.`
			`bytes_written_uncompressed UInt64 - Amount of bytes written, uncompressed.`
			`rows_written UInt64 - Number of rows written.`