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How to use Boto3 to delete a specific version of table from AWS Glue Data catalog?
Problem Statement − Use boto3 library in Python to delete a table of specific version, created in your account.
Example − Delete a table ‘security’ version 1 from database ‘test’ that is created in your account.
Approach/Algorithm to solve this problem
Step 1 − Import boto3 and botocore exceptions to handle exceptions.
Step 2 − Pass the parameter database_name, table_name and version_id that should be deleted from AWS Glue Catalog.
Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.
Step 4 − Create an AWS client for glue.
Step 5 − Now use delete_table_version function and pass the database_name as DatabaseName parameter, table_name as TableName parameter and version_id as VersionId parameter. Please keep remember, VersionId is string so it should be passed in ‘ ’ and user can’t delete latest version of a table. Only the old version of a table can be deleted if user wants to delete latest version then drop the table using function delete_table.
Step 6 − It will delete the old specific version of table and return the response metadata.
Step 7 − Handle the generic exception if something went wrong while checking the job.
Example
Use the following code to delete a specific version of table from AWS Glue database −
import boto3
from botocore.exceptions import ClientError
def delete_a_table_version_from_database(database_name, table_name, version_id:str):
session = boto3.session.Session()
glue_client = session.client('glue')
try:
response = glue_client.delelte_table_version(DatabaseName= database_name, Name = table_name, VersionId = version_id)
return response
except ClientError as e:
raise Exception( "boto3 client error in delete_a_table_version_from_database: " + e.__str__())
except Exception as e:
raise Exception( "Unexpected error in delete_a_table_version_from_database: " + e.__str__())
print(delete_a_table_version_from_database("test","security","1"))Output
{'ResponseMetadata': {'RequestId': '7aa7c3cb…………….-…….8a238c',
'HTTPStatusCode': 200, 'HTTPHeaders': {'date': 'Sun, 21 Feb 2021
04:58:04 GMT', 'content-type': 'application/x-amz-json-1.1', 'contentlength': '2', 'connection': 'keep-alive', 'x-amzn-requestid': '7aa7c3cbf611-494e-b923-8610318a238c'}, 'RetryAttempts': 0}}
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