Release Notes 2022.1

The 2022.1 release notes were released on 7/19/2022 and describe the following:

Version Content

The 2022.1 Release Notes describe the following:

  • Enhanced security features.

  • New data manipulation command.

  • Additional data ingestion format.

Storage Version

The storage version presently in effect is version 40.

New Features

The 2022.1 Release Notes include the following new features:

Data Encryption

SQream now supports data encryption mechanisms in accordance with General Data Protection Regulation (GDPR) standards.

Using the data encryption feature may lead to a maximum of a 10% increase in performance degradation.

For more information, see Data Encryption.

Update Feature

SQream now supports the DML Update feature, which is used for modifying the value of certain columns in existing rows.

For more information, see UPDATE.

Avro Ingestion

SQream now supports ingesting data from Avro files.

For more information, see Inserting Data from Avro.

Known Issues

The following table lists the known issues for Version 2022.1:

SQ No.



Reading numeric columns from an external Parquet file generated an error.


Running a query including Thai characters generated an internal runtime error.


Error on existing subqueries with TEXT and VARCHAR equality condition


The ALTER DEFAULT SCHEMA command was not functioning correctly.


Inserting data into a table significantly slowed down running queries.


Using a comment generated a compile error.

Resolved Issues

The following table lists the issues that were resolved in Version 2022.1:

SQ No.



Reading numeric columns from an external Parquet file generated an error.

Operations and Configuration Changes

No relevant operations and 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.

Upgrading to v2022.1

  1. Generate a backup of the metadata by running the following command:

    $ select backup_metadata('out_path', 'single_file');


    SQream recommends storing the generated backup 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 backup file.

  4. Replace your current metadata with the metadata you stored in the backup 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.