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ClickHouse/docs/en/operations/system-tables/text_log.md
Anna a6fb067a75
DOCSUP-1915: Split system-table.md into separate files. (#13160) 
* Corrected en files

* Split system-tables.md into separate files

* Fixed links.

* Fixed links.

* Fixed links.

* Fixed links.

* Add ref to original article

* Fixed links

* Add toc_folder_title and translate

* Add stack_trace.md, correct toc-title

* Fixed links

* Hypothesis testing

* Hypothesis testing

* Update run.sh, thanks @azat

Co-authored-by: Anna Devyatova <annadevyatova@yandex-team.ru>
Co-authored-by: Sergei Shtykov <bayonet@yandex-team.ru>
Co-authored-by: alexey-milovidov <milovidov@yandex-team.ru>
2020-08-06 11:50:29 +03:00

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system.text_log

Contains logging entries. Logging level which goes to this table can be limited with text_log.level server setting.

Columns:

  • event_date (Date) — Date of the entry.
  • event_time (DateTime) — Time of the entry.
  • microseconds (UInt32) — Microseconds of the entry.
  • thread_name (String) — Name of the thread from which the logging was done.
  • thread_id (UInt64) — OS thread ID.
  • level (Enum8) — Entry level. Possible values:
    • 1 or 'Fatal'.
    • 2 or 'Critical'.
    • 3 or 'Error'.
    • 4 or 'Warning'.
    • 5 or 'Notice'.
    • 6 or 'Information'.
    • 7 or 'Debug'.
    • 8 or 'Trace'.
  • query_id (String) — ID of the query.
  • logger_name (LowCardinality(String)) — Name of the logger (i.e. DDLWorker).
  • message (String) — The message itself.
  • revision (UInt32) — ClickHouse revision.
  • source_file (LowCardinality(String)) — Source file from which the logging was done.
  • source_line (UInt64) — Source line from which the logging was done.

Original article