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* prefer relative links from root * wip * split aggregate function reference * split system tables
27 lines
1.1 KiB
Markdown
27 lines
1.1 KiB
Markdown
# system.text\_log {#system-tables-text-log}
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Contains logging entries. Logging level which goes to this table can be limited with `text_log.level` server setting.
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Columns:
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- `event_date` (Date) — Date of the entry.
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- `event_time` (DateTime) — Time of the entry.
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- `microseconds` (UInt32) — Microseconds of the entry.
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- `thread_name` (String) — Name of the thread from which the logging was done.
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- `thread_id` (UInt64) — OS thread ID.
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- `level` (`Enum8`) — Entry level. Possible values:
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- `1` or `'Fatal'`.
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- `2` or `'Critical'`.
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- `3` or `'Error'`.
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- `4` or `'Warning'`.
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- `5` or `'Notice'`.
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- `6` or `'Information'`.
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- `7` or `'Debug'`.
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- `8` or `'Trace'`.
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- `query_id` (String) — ID of the query.
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- `logger_name` (LowCardinality(String)) — Name of the logger (i.e. `DDLWorker`).
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- `message` (String) — The message itself.
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- `revision` (UInt32) — ClickHouse revision.
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- `source_file` (LowCardinality(String)) — Source file from which the logging was done.
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- `source_line` (UInt64) — Source line from which the logging was done.
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