Materialize/doc/user/content/releases/v0.28.md

---

title: "Materialize v0.28" date: 2022-10-19 released: true patch: 4

aliases: v0.28.0

v0.28.0

• Use static IPs when initiating connections from sources and sinks. You can use these IPs in your firewall configuration to authorize connections from your Materialize region.

• Improve the syntax for CREATE CONNECTION. The FROM keyword was replaced with TO, and the option list must now be enclosed in parenthesis.

New syntax

  CREATE CONNECTION kafka_connection TO KAFKA (
    BROKER 'unique-jellyfish-0000.us-east-1.aws.confluent.cloud.io:9092',
    SASL MECHANISMS = 'SCRAM-SHA-256',
    SASL USERNAME = 'foo',
    SASL PASSWORD = SECRET kafka_password
  );

Old syntax

  CREATE CONNECTION kafka_connection FOR KAFKA
    BROKER 'unique-jellyfish-0000.us-east-1.aws.confluent.cloud:9092',
    SASL MECHANISMS = 'SCRAM-SHA-256',
    SASL USERNAME = 'foo',
    SASL PASSWORD = SECRET kafka_password;

The old syntax is still supported for backwards compatibility, but its use is discouraged.

• Improve the usability of the EXPLAIN command. For an overview of the new EXPLAIN syntax, check the updated documentation.

• Include all indexes when running the SHOW INDEXES command, regardless of the number of columns. Previously, SHOW INDEXES would omit any indexes with 0 columns.

• Include all indexes when a schema is specified using SHOW INDEXES ON. Previously, the command would not correctly display existing indexes in non-active schemas.

• Add a default index for all SHOW commands in the mz_introspection cluster. For the best performance when executing SHOW commands, switch to the mz_introspection cluster using:

  SET CLUSTER = mz_introspection;
  

• Correctly use the char type for pg_type.typcategory. Previously, typcategory used the text type, which caused errors in language drivers that expect the documented char type, like sqlx.

• Add the mz_introspection system cluster to support efficiently serving common introspection queries.

• Add the mz_system system cluster to support various internal system tasks.

• Breaking change. Change the type of a materialized view in the mz_objects relation from materialized view to materialized-view, for consistency with how multi-word types are represented elsewhere in the catalog.