Categories:: Table functions

ICEBERG_TABLE_FILES¶

Returns information about the data files registered to an externally managed Apache Iceberg™ table at a specified point in time.

See also:: Apache Iceberg™ tables , Metadata and retention for Apache Iceberg™ tables , ALTER ICEBERG TABLE … REFRESH

Syntax¶

ICEBERG_TABLE_FILES(
  TABLE_NAME => '<table_name>'
  [, AT => '<timestamp_ltz>']
)

Arguments¶

Required

TABLE_NAME => 'table_name': The name of the externally managed Iceberg table for which you want to retrieve the data file information.

Optional

AT => 'timestamp_ltz'

Specifies an exact date and time to use for retrieving the file information. The value must be explicitly cast to a TIMESTAMP_LTZ data type. For information, see Date & time data types.

If not specified, the function returns information about the table files for the current snapshot.

Output¶

The function returns the following columns:


Column name	Data type	Description
REGISTERED_ON	TIMESTAMP_LTZ	The timestamp of when the Parquet file was registered.
FILE_NAME	TEXT	The full path to the registered file.
FILE_SIZE	NUMBER	The size of the file (in bytes).
ROW_COUNT	NUMBER	The number of rows in the file.
ROW_COUNT_GROUP	NUMBER	The number of row groups in the file.
MD5	N/A	This field returns a placeholder value and should not be used. This field might be deprecated in a future release.
ETAG	N/A	This field returns a placeholder value and should not be used. This field might be deprecated in a future release.
LAST_MODIFIED_ON	N/A	This field returns a placeholder value and should not be used. This field might be deprecated in a future release.

Note

The ETAG, MD5, and LAST_MODIFIED_ON fields return a placeholder value and should not be used. These fields might be deprecated in a future release.

Examples¶

Retrieve information about the Parquet data files for the current snapshot registered to an externally managed Iceberg table named my_iceberg_table:

SELECT *
  FROM TABLE(
    INFORMATION_SCHEMA.ICEBERG_TABLE_FILES(
      TABLE_NAME => 'my_iceberg_table'
    )
  );

Output:

+-------------------------------------------------------+--------------------------------+------------+--------------------------------+------------+------------------+-----------------------------------+-----------------------------------+
| FILE_NAME                                             | REGISTERED_ON                  | FILE_SIZE  | LAST_MODIFIED_ON               | ROW_COUNT  | ROW_GROUP_COUNT  | ETAG                              | MD5                               |
| data/87/snow_D9zlAoeipII_AODxT1uXDxg_0_1_003.parquet  | 1969-12-31 16:00:00.000 -0800  | 27136      | 1969-12-31 16:00:00.000 -0800  | 30000      | 1                | NULL                              | NULL                              |
| data/08/snow_D9zlAoeipII_AODxT1uXDxg_0_1_006.parquet  | 1969-12-31 16:00:00.000 -0800  | 45568      | 1969-12-31 16:00:00.000 -0800  | 45000      | 1                | NULL                              | NULL                              |
| data/94/snow_D9zlAoeipII_AODxT1uXDxg_0_1_008.parquet  | 1969-12-31 16:00:00.000 -0800  | 45056      | 1969-12-31 16:00:00.000 -0800  | 45000      | 1                | NULL                              | NULL                              |
| data/24/snow_D9zlAoeipII_AODxT1uXDxg_0_1_004.parquet  | 1969-12-31 16:00:00.000 -0800  | 27136      | 1969-12-31 16:00:00.000 -0800  | 30000      | 1                | NULL                              | NULL                              |
+-------------------------------------------------------+--------------------------------+------------+--------------------------------+------------+------------------+-----------------------------------+-----------------------------------+

Retrieve information about the Parquet data files for a table named my_iceberg_table at a specified time and day:

SELECT file_name, file_size, row_count, row_group_count, etag, md5
  FROM TABLE(
    INFORMATION_SCHEMA.ICEBERG_TABLE_FILES(
      TABLE_NAME => 'my_iceberg_table',
      AT => CAST('2024-12-09 11:02:00' AS TIMESTAMP_LTZ)
    )
  );

Output:

+------------------------------------------------------+-----------+-----------+-----------------+----------------------------------+----------------------------------+
| FILE_NAME                                            | FILE_SIZE | ROW_COUNT | ROW_GROUP_COUNT | ETAG                             | MD5                              |
|------------------------------------------------------+-----------+-----------+-----------------+----------------------------------+----------------------------------|
| data/87/snow_D9zlAoeipII_AODxT1uXDxg_0_1_003.parquet | 27136     | 30000     | 1               | NULL                             | NULL                             |
| data/08/snow_D9zlAoeipII_AODxT1uXDxg_0_1_006.parquet | 45568     | 45000     | 1               | NULL                             | NULL                             |
| data/94/snow_D9zlAoeipII_AODxT1uXDxg_0_1_008.parquet | 45056     | 45000     | 1               | NULL                             | NULL                             |
| data/24/snow_D9zlAoeipII_AODxT1uXDxg_0_1_004.parquet | 27136     | 30000     | 1               | NULL                             | NULL                             |
+------------------------------------------------------+-----------+-----------+-----------------+----------------------------------+----------------------------------+
4 Row(s) produced. Time Elapsed: 1.502s