Materialize/doc/user/content/releases/v0.108.md

---

title: "Materialize v0.108" date: 2024-07-17 released: true

patch: 2

v0.108

Sources and sinks

• Allow specifying the message key format and the message value format separately in Kafka sinks, using the new KEY FORMAT ... VALUE FORMAT ... option.

• Support including a header row in CSV files exported using S3 bulk exports.

  COPY some_view TO 's3://mz-to-snow/csv/'
  WITH (
    AWS CONNECTION = aws_role_assumption,
    FORMAT = 'csv',
    HEADER = true
  );
  

SQL

• Add hydration_time to the mz_internal.mz_compute_hydration_statuses system catalog view. This column shows the amount of time it took for a dataflow-powered object to hydrate (i.e., be backfilled with any pre-existing data).

Bug fixes and other improvements

• Disallow creating sinks that directly depend on system catalog objects {{% gh 28122 %}}.