Schema:: ACCOUNT_USAGE

SNOWPIPE_STREAMING_FILE_MIGRATION_HISTORY view¶

This Account Usage view can be used to query the history of data migrated into Snowflake tables using Snowpipe Streaming within the last 365 days (1 year). The view displays the number of rows and bytes migrated and credits used for migration billed for your entire Snowflake account.

Columns¶

Column Name	Data Type	Description
START_TIME	TIMESTAMP_LTZ	Start of the time (in the local time zone) range in which data migration took place.
END_TIME	TIMESTAMP_LTZ	End of the time (in the local time zone) range in which data migration took place.
CREDITS_USED	FLOAT	Number of credits billed for Snowpipe Streaming data migration during the START_TIME and END_TIME window.
NUM_BYTES_MIGRATED	NUMBER	Number of bytes migrated during the START_TIME and END_TIME window.
NUM_ROWS_MIGRATED	NUMBER	Number of rows migrated during the START_TIME and END_TIME window.
TABLE_ID	NUMBER	Internal/system-generated identifier for the target table that the Snowpipe Streaming client loads data into.
TABLE_NAME	TEXT	The name of the target table that the Snowpipe Streaming client loads data into.
SCHEMA_ID	NUMBER	Internal/system-generated identifier for the schema that the target table belongs to.
SCHEMA_NAME	TEXT	The name of the schema that the target table belongs to.
DATABASE_ID	NUMBER	Internal/system-generated identifier for the database that the target table belongs to.
DATABASE_NAME	TEXT	The name of the database that the target table belongs to.

Usage notes¶

Latency for the view may be up to 12 hours.

Note that file migration sometimes may be pre-empted by clustering or other DML operations. Migration may not always occur and therefore the migration history will be empty even after 12 hours.
The NUM_BYTES_MIGRATED and NUM_ROWS_MIGRATED columns only show the number of bytes and rows processed during the migration process. These numbers may not equal the actual numbers of rows and bytes inserted by Snowpipe Streaming to the table because some rows and bytes are processed outside of the migration process due to clustering or other DML operations.

For example, Snowpipe Streaming inserts 1M rows and the table has 1M rows, but the NUM_ROWS_MIGRATED column in the migration history view only shows 800K rows. This is because the other 200K rows are processed outside of the migration process.

Examples¶

Query the history of data migrated into Snowflake tables using Snowpipe Streaming within the last 365 days.

SELECT * FROM SNOWFLAKE.ACCOUNT_USAGE.SNOWPIPE_STREAMING_FILE_MIGRATION_HISTORY;

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The query returns the following results.

+-------------------------------+-------------------------------+--------------+--------------------+------------------+----------+-----------------+------------+--------------+---------------+--------------+
| START_TIME                    | END_TIME                      | CREDITS_USED | NUM_BYTES_MIGRATED | NUM_ROWS_MIGRATED| TABLE_ID |      TABLE_NAME | SCHEMA_ID  |  SCHEMA_NAME |   DATABASE_ID | DATABASE_NAME|
|-------------------------------+-------------------------------+--------------+--------------------+------------------+----------+----------------------------------------------------------------------------|
|2023-02-08 19:00:00.000 +0000  |2023-02-08 20:00:00.000 +0000  | 0.0000325    |                 0  |                0 |  16849926| STREAMING_TABLE |   101351   |   SNOW       |  3166         |STREAMING     |
|2023-02-07 19:00:00.000 +0000  |2023-02-07 20:00:00.000 +0000  | 0.000096761  |             7,850  |               39 |  16849926| STREAMING_TABLE |   101351   |   SNOW       |  3166         |STREAMING     |
+-------------------------------+-------------------------------+--------------+--------------------+------------------+----------+-----------------+------------+--------------+---------------|--------------+

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