Viewing History Operation Records of a Delta Table
Syntax
DESCRIBE HISTORY [database_name.]table_name|DELTA.`obs_path` [LIMIT n]
Example
DESCRIBE HISTORY delta_table0; DESCRIBE HISTORY delta.`obs://tablePath` LIMIT 1;
System Response
Returns the table's historical operations, with the meaning of the result indicators shown in the following table.
|
Metric |
Description |
|---|---|
|
version |
Version number of the table operation |
|
timestamp |
Timestamp of the current version operation |
|
userId |
User ID of the current version operation |
|
userName |
Username of the current version operation |
|
operation |
Operation name (e.g., WRITE, CREATE TABLE, UPDATE, DELETE, MERGE, RESTORE) |
|
operationParameters |
Operation parameters |
|
job |
Detailed information about the job running the operation |
|
notebook |
Detailed information about the notebook running the operation |
|
clusterId |
Cluster ID |
|
readVersion |
Table version read for the write operation |
|
isolationLevel |
Isolation level |
|
isBlindAppend |
Whether data is appended |
|
operationMetrics |
Metrics of the operation (e.g., number of files modified, rows modified, bytes modified) |
|
engineInfo |
Information on Spark and Delta versions |
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