risingwavelabs/risingwave v1.2.0

on GitHub

For installation and running instructions, see Get started.

Main changes

SQL features

• SQL commands:

  • Breaking change: Syntax of emit-on-window-close has changed. If your application contains integration code, please update your code accordingly. #11363
    In v1.1:

    CREATE MATERIALIZED VIEW mv
    EMIT ON WINDOW CLOSE
    AS SELECT
    ...;

    In v1.2 and onwards:

    CREATE MATERIALIZED VIEW mv
    AS SELECT
    ...
    EMIT ON WINDOW CLOSE;

  • Privileges for tables can now be granted or revoked. #11725

  • The default DISTRIBUTED BY columns have been changed from the whole index columns into the first index column. #11865

  • Supports ALTER SOURCE ADD COLUMN. #11350

  • Supports SHOW JOBS and CANCEL JOBS , with which you can show the in-progress streaming jobs and cancel jobs by their IDs. #11854

  • Supports [I]LIKE in SHOW commands. #11791

• SQL functions & operators

  • Supports lambda functions via array_transform. #11888 #11937
  • to_date() #11241
  • The to_char() function now supports timestamptz input. #11778
  • scale, min_scale , and trim_scale #11663
  • Supports regexp_replace . #11819
  • Supports regexp_count . #11975
  • Supports [NOT] ILIKE expressions. #11743
  • Adds support for [!]~~[*] operators. They’ll be parsed to [NOT] [I]LIKE expressions. #11748
  • Supports IS JSON predicate. #11831

• Query syntax:

  • Adds support for LIMIT clauses in streaming queries. #11566
  • Supports LATERAL subqueries. #11780

• System catalog

  • A new group of system catalogs (rw_relations, rw_system_tables, rw_types, rw_user_secrets, and rw_columns) are available for you to retrieve system data and metadata. #11334
  • Adds new system function pg_relation_size() . #11687

• Adds support for transactions for single-table CDC data. #11453

Sources & sinks

• Adds a new parameter schema.registry.name.strategy to the Kafka connector, with with you can specify naming strategies for schema registries. #11384
• Breaking Change: Implements a Rust-native Iceberg sink connector to improve stability and performance. The connector introduces new parameters. Applications that rely on the previous version of the feature (specifically, the version included in RisingWave v1.0.0 and v1.1) may no longer function correctly. To restore functionality to your applications, please carefully review the syntax and parameters outlined on this page and make any necessary revisions to your code. Please refer to Sink data to Iceberg for details. #11326
• Adds support for sinking data to ClickHouse. #11240
• Experimental: An enhancement has been made to the mysql-cdc connector to improve data ingestion performance. It achieves so by optimizing the data backfilling logic for CDC tables. This feature is not enabled by default. To enable it, run this command: SET cdc_backfill="true"; #11707
• Adds a parameter client.id for Kafka sources. #11911

Deployment

• Supports HDFS as the storage backend for deployments via Docker Compose. #11632

Administration & observability

• Adds a new system parameter max_concurrent_creating_streaming_jobs, with which users can specify the maximum number of streaming jobs that can be created concurrently. #11601
• Improves the calculation logic of the Mem Table Size (Max) metric in RisingWave Dashboard. #11442
• Adds new metrics to RisingWave Dashboard:
  • Materialized View Memory Usage #10958
  • Materialized View Read Size, Materialized View Write Size #11054
  • Active Sessions #11688

Full Changelog: v1.1.0...v1.2.0