FUSE_TIME_TRAVEL_SIZE

Calculates the storage size of historical data (for Time Travel) for tables.

Syntax

-- Calculate historical data size for all tables in all databases
SELECT ...
FROM fuse_time_travel_size();

-- Calculate historical data size for all tables in a specified database
SELECT ...
FROM fuse_time_travel_size('<database_name>');

-- Calculate historical data size for a specified table in a specified database
SELECT ...
FROM fuse_time_travel_size('<database_name>', '<table_name>');

Output

The function returns a result set with the following columns:

Examples

This example calculates the historical data for all tables in the default database:

SELECT * FROM fuse_time_travel_size('default')

┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ database_name │ table_name │ is_dropped │ time_travel_size │ latest_snapshot_size │ data_retention_period_in_hours │       error      │
├───────────────┼────────────┼────────────┼──────────────────┼──────────────────────┼────────────────────────────────┼──────────────────┤
│ default       │ books      │ true       │             2810 │                 1490 │                           NULL │ NULL             │
└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘