Release Notes 2022.1.2

The 2022.1.2 release notes were released on 8/24/2022 and describe the following:

Version Content

The 2022.1.2 Release Notes describes the following:

  • Automatic schema identification.

  • Optimized queries on external Parquet tables.

New Features

The 2022.1.2 Release Notes include the following new features:

Parquet Read Optimization

Querying Parquet foreign tables has been optimized and is now up to 20x faster than in previous versions.

Resolved Issues

The following table lists the issues that were resolved in Version 2022.1.2:

SQ No.



An incorrect error message was displayed when users ran the UPDATE command on foreign tables.


Clustering optimization only occurs when copying data from CSV files.

Operations and Configuration Changes

No configuration changes were made.

Naming Changes

No relevant naming changes were made.

Deprecated Features

In SQream version 2022.1 the VARCHAR data type has been deprecated and replaced with TEXT. SQream will maintain VARCHAR in all previous versions until completing the migration to TEXT, at which point it will be deprecated in all earlier versions. SQream also provides an automated and secure tool to facilitate and simplify migration from VARCHAR to TEXT.

If you are using an earlier version of SQream, see the Using Legacy String Literals configuration flag.

End of Support

The End of Support section is not relevant to Version 2022.1.2.

Upgrading to v2022.1.2

  1. Generate a back-up of the metadata by running the following command:

    $ select backup_metadata('out_path');


    SQream recommends storing the generated back-up locally in case needed.

    SQream runs the Garbage Collector and creates a clean backup tarball package.

  2. Shut down all SQream services.

  3. Extract the recently created back-up file.

  4. Replace your current metadata with the metadata you stored in the back-up file.

  5. Navigate to the new SQream package bin folder.

  6. Run the following command:

    $ ./upgrade_storage <levelDB path>


Upgrading from a major version to another major version requires you to follow the Upgrade Storage step. This is described in Step 7 of the Upgrading SQream Version procedure.