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> Use this file to discover all available pages before exploring further.

> Contains information about all transactions executed on a current server.
It is safe to truncate or drop this table at any time.

# system.transactions_info_log

Contains information about all transactions executed on a current server.

It is safe to truncate or drop this table at any time.

Columns:

* `hostname` ([LowCardinality(String)](/reference/data-types/lowcardinality)) — The hostname where transaction was executed.
* `type` ([Enum8('Begin' = 1, 'Commit' = 2, 'Rollback' = 3, 'AddPart' = 10, 'LockPart' = 11, 'UnlockPart' = 12)](/reference/data-types/enum)) — The type of the transaction. Possible values: Begin, Commit, Rollback, AddPart, LockPart, UnlockPart.
* `event_date` ([Date](/reference/data-types/date)) — Date of the entry.
* `event_time` ([DateTime64(6)](/reference/data-types/datetime64)) — Time of the entry
* `thread_id` ([UInt64](/reference/data-types/int-uint)) — The identifier of a thread.
* `query_id` ([String](/reference/data-types/string)) — The ID of a query executed in a scope of transaction.
* `tid` ([Tuple(UInt64, UInt64, UUID)](/reference/data-types/tuple)) — The identifier of a transaction.
* `tid_hash` ([UInt64](/reference/data-types/int-uint)) — The hash of the identifier.
* `csn` ([UInt64](/reference/data-types/int-uint)) — The Commit Sequence Number
* `database` ([String](/reference/data-types/string)) — The name of the database the transaction was executed against.
* `table` ([String](/reference/data-types/string)) — The name of the table the transaction was executed against.
* `uuid` ([UUID](/reference/data-types/uuid)) — The uuid of the table the transaction was executed against.
* `part` ([String](/reference/data-types/string)) — The name of the part participated in the transaction.