PyGridGain 1.2.0 Release Notes
New Features
PyGridGain 1.2.0 provides access to new features and improvements.
SSL/TLS Certificates with Passwords
Starting this version, SSL/TLS certificates with passwords are supported. Use ssl_keyfile_password argument of client class to specify it upon creation: Client(ssl_keyfile_password=password)
client = Client(use_ssl=True, ssl_keyfile=keyfile, ssl_keyfile_password='my_password')
client.connect('127.0.0.1', 10800)Changes in Behavior
Changes in SQL API
Added cache argument to Client.sql that can be used to infer schema for SQL query. If this argument is used, schema argument is ignored.
Also, default SQL page size increased from 1 to 1024 which provides significant performance improvement when fetching SQL results.
New Error Type for Authentication Failure
Python thin client now returns a more clear error message on authentication failure. There is also a new error class - AuthenticationError, which makes it simplier to handle authentication errors.
SqlQuery API
Starting this version, the simplified version of SQL API - SqlQuery API is deprecated. It is recommended to use SqlFieldsQuery instead.
cache = client.get_cache('SomeCache')
result = cache.select_row('field > 42')
for k, v in result:
print(f'{k}: {v}')result = client.sql('select key, value from TableName where field > 42', cache='SomeCache')
for k, v in result:
print(f'{k}: {v}')Improvements and Fixed Issues
GG-32662 |
SSL/TLS certificates with passwords are now supported. Use |
GG-32661 |
Fixed bug causing SQL API to return fields in the wrong order. |
GG-32601 |
The SqlQuery API is now deprecated. Use SqlFieldsQuery instead. |
GG-32600 |
Fixed issue causing implicit creation of a new cache when SQL API was used with a name of non-existing cache. |
GG-32404 |
Python thin client now returns a more clear error message on authentication failure. Also, added the AuthenticationError error class to help user handle similar issues. |
GG-31727 |
Fixed issue that prevented Python from working correctly with objects created using other platforms and clients. |
GG-31694 |
Fixed issue that could cause client freezing when client was getting objects with null fields from cache. |
GG-28235 |
Default SQL result set page size was increased from 1 to 1024. Page size of 1 was causing poor performance when fetching multiple rows using SQL. |
GG-27755 |
Fixed issue causing boolean value to be returned as ints. |
GG-32415 |
Python thin client now returns the time zone-independent values while working with date/time types (when used with latest server release). |
Installation and Upgrade Information
To upgrade an existing package, use the following command:
pip install --upgrade pygridgainTo install the latest version of a package:
pip install pygridgainTo install a specific version:
pip install pygridgain==1.2.0Known Limitations
Argument schema of Client.sql Call in pygridgain-1.2.0 and Later
In PyGridGain earlier than 1.2.0 version, the schema argument of the Client.sql API call is treated as a cache name and implicitly creates cache with such a name if it is not present. In particular, when the schema argument was not specified by user, the "PUBLIC" schema was used by default, which could led to the creation of a cache with "PUBLIC" name. Presently, the cache is not created implicitly. In some cases, this can cause the "Cache does not exists" errors after upgrading to a newer version.
We Value Your Feedback
Your comments and suggestions are always welcome. You can reach us here: https://gridgain.freshdesk.com/support/login or docs@gridgain.com
Please visit the documentation for more information.
© 2024 GridGain Systems, Inc. All Rights Reserved. Privacy Policy | Legal Notices. GridGain® is a registered trademark of GridGain Systems, Inc.
Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation.