v1.3.0

For installation and running instructions, see Get started.

Main changes

SQL features

• SQL commands
  • Experimental: Variable BACKGROUND_DDL can be set to true when creating a materialized view. #12355
  • ALTER COLUMN command can be used for tables with non-schema-registry source. #12164
• SQL functions & operators
  • Supports array_min. #12071
  • Supports array_max. #12100
  • Supports array_sort. #12189
  • Supports array_sum. #12162
  • format function supports variable inputs. #12178
  • Regular expression functions support back reference, positive, negative lookahead, and positive, negative lookbehind. #12329
  • Supports || operator for concatenating JSONB data. #12502
  • Supports bool_and and bool_or in materialized views. #11956
• Query syntax:
  • Supports WITH ORDINALITY clause. #12273
• System catalog
  • Adds new system function pg_sleep. #12294
  • Adds new system function _pg_expandarray. #12448
  • Adds new storage related system tables:
    • rw_hummock_sstables #12532
    • rw_hommock_pinned_versions, rw_hommock_pinned_snapshots #12285
    • rw_hummock_branched_objects , rw_hummock_current_version , rw_hummock_checkpoint_version , rw_hummock_version_deltas #12309
    • rw_hummock_meta_configs, rw_hummock_compaction_group_configs #12337

Sources & sinks

• Generated columns defined with non-deterministic functions cannot be part of the primary key. #12181
• Adds new properties.enable.auto.commit parameter for the Kafka consumer, which sets the enable.auto.commit parameter for the Kafka client. #12223
• Adds privatelink.endpoint parameter to the WITH clause, to support private link for Kafka connector on GCP and AWS. #12266
• Adds parameters [message.timeout.ms](http://message.timeout.ms) and max.in.flight.requests.per.connection for Kafka sources. #12574
• Allows Kinesis source to start ingesting data from a specific timestamp. sequence_number is no longer supported as a startup mode option. #12241
• Allow optional FORMAT DEBEZIUM ENCODE JSON after the connector definition of CDC tables. Allow optional FORMAT NATIVE ENCODE NATIVE after the connector definition of Nexmark sources or tables. #12306
• Allows multiple URLs when defining schema registries. #11982
• Adds support for sinking data to versions 7 and 8 of Elasticsearch. #10357, https://github.com/risingwavelabs/risingwave/pull/10415https://github.com/risingwavelabs/risingwave-docs/issues/1303
• Adds support for sinking append-only data to the NATS messaging system. #11924
• Adds support for sinking data to Doris. #12336
• Adds support for sinking data to Apache Pulsar. #12286
• Adds support for sinking data to Cassandra and ScyllaDB. #11878
• Adds support for creating upsert Iceberg sinks. #12576
• Supports specifying the sink_decouple session variable as default, true and enable, or false and disable. #12544
• A varchar column in RisingWave can sink into a uuid column in Postgres. #12704
• New syntaxes for specifying data format and data encode when creating a Kafka, Kinesis, and Pulsar sink. #12556

Administration & observability

Adds information_schema.views, which contains information about views defined in the database.

Full Changelog: v1.2.0...v1.3.0

v1.2.0

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

v1.1.4

release v1.1.4

v1.1.3

release v1.1.3

v1.1.2

release v1.1.2

v1.1.1

release v1.1.1

v1.1.0

For installation and running instructions, see Get started.

Main changes

SQL features

• SQL commands:

  • DROP commands now support the CASCADE option, which drops the specified item and all its dependencies. #11250

  • CREATE TABLE now supports the APPEND ONLY clause, allowing the definition of watermark columns on the table. #11233

  • Supports new commands START TRANSACTION, BEGIN, and COMMIT for read-only transactions. #10735

  • Supports SHOW CLUSTER to show the details of your RisingWave cluster, including the address of the cluster, its state, the parallel units it is using, and whether it's streaming data, serving data or unschedulable. #10656, #10932

• SQL functions:

  • Supports new window functions: lead() and lag(). #10915

  • Supports new aggregate functions: first_value() and last_value(), which retrieve the first and last values within a specific ordering from a set of rows. #10740

  • Supports the grouping() function to determine if a column or expression in the GROUP BY clause is part of the current grouping set or not. #11006

  • Supports the set_config() system administration function. #11147

  • Supports the sign() mathematical function. #10819

  • Supports string_agg() with DISTINCT and ORDER BY, enabling advanced string concatenation with distinct values and custom sorting. #10864

  • Supports the co-existence of string_agg() and other aggregations with DISTINCT. #10864

  • Supports the zone_string parameter in the date_trunc(), extract(), and date_part() functions, ensuring compatibility with PostgreSQL. #10480

    • Breaking change: Previously, when the input for date_trunc was actually a date, the function would cast it to a timestamp and record the choice in the query plan. However, after this release, new query plans will cast the input to timestamptz instead. As a result, some old SQL queries, especially those saved as views, may fail to bind correctly and require type adjustments. It's important to note that old query plans will still continue working because the casting choice is recorded with a cast to timestamp.

    Before this release:

    ```sql
    SELECT date_trunc('month', date '2023-03-04');
    
            date_trunc
    ---------------------------
      2023-03-01 00:00:00
    (1 row)
    ```
    

    After this release:

    ```sql
    SELECT date_trunc('month', date '2023-03-04');
    
            date_trunc
    ---------------------------
      2023-03-01 00:00:00+00:00
    (1 row)
    ```
    

    Now, the result of date_trunc includes the timezone offset (+00:00) in the output, making it consistent with the behavior in PostgreSQL.

  • round() now accepts a negative value and rounds it to the left of the decimal point. #10961

  • to_timestamp() now returns timestamptz. #11018

• Query clauses

  • SELECT now supports the EXCEPT clause which excludes specific columns from the result set. #10438, #10723

  • SELECT now supports the GROUPING SETS clause which allows users to perform aggregations on multiple levels of grouping within a single query. #10807

  • Supports index selection for temporal joins. #11019

  • Supports CUBE in group-by clauses to generate multiple grouping sets. #11262

• Patterns

  • Supports multiple rank function calls in TopN by group. #11149

• System catalog

  • Supports querying created_at and initialized_at from RisingWave relations such as sources, sinks, and tables in RisingWave catalogs. #11199

Connectors

• Supports specifying Kafka parameters when creating a source or sink. #11203

• JDBC sinks used for upserts must specify the downstream primary key via the primary_key option. #11042

• access_key and its corresponding secret_key are now mandatory for all AWS authentication components. #11120

Full Changelog: v1.0.0...v1.1.0

v1.0.0

For installation and running instructions, see Get started.

Main changes

SQL features

• SQL command:

  • Supports the SHOW CLUSTERS command. #10656

  • Supports the GROUPING SETS clause. #10807

• SQL function:

  • Adds the current_setting() function to get the current value of a configuration parameter. #10051

  • Adds new array functions: array_position(), array_replace(), array_ndims(), array_lower(), array_upper(), array_length(), and array_dims(). #10166, #10197

  • Adds new aggregate functions: percentile_cont(), percentile_disc(), and mode(). #10252

  • Adds new system functions: user(), current_user(), and current_role(). #10366

  • Adds new string functions: left() and right(). #10765

  • Adds new bytea functions: octet_length() and bit_length(). #10462

  • array_length() and cardinality() return integer instead of bigint. #10267

  • Supports the row_number window function that doesn't match the TopN pattern. #10869

• User-defined function:

  • Adds support for defining UDFs in Java. #10095

  • Adds support for more Java UDF and Python UDF data types. #10399

  • The language parameter is no longer required in CREATE FUNCTION. #10608

• System catalog:

  • Adds more columns to information_schema.columns: column_default, character_maximum_length, and udt_name. #10269

  • Adds a new system catalog pg_proc. #10216

  • Adds new RisingWave catalogs:

    • rw_table_fragments, rw_fragments, rw_actors #10712
    • rw_worker_nodes, rw_parallel_units #10656
    • rw_connections, rw_databases, rw_functions, rw_indexes, rw_materialized_views, rw_schemas, rw_sinks, rw_sources, rw_tables, rw_users, rw_views #10593

• Supports GROUP BY output alias or index. #10305

• Supports using scalar functions in the FROM clause. #10317

• Supports tagging the created VPC endpoints when creating a PrivateLink connection. #10582

Connectors

• Breaking change: When creating a source or table with a connector whose schema is auto-resolved from an external format file, the syntax for defining primary keys within column definitions is replaced with the table constraint syntax. #10195

  CREATE TABLE debezium_non_compact (order_id int PRIMARY KEY) WITH (
  connector = 'kafka',
  kafka.topic = 'debezium_non_compact_avro_json',
  kafka.brokers = 'message_queue:29092',
  kafka.scan.startup.mode = 'earliest'
  ) ROW FORMAT DEBEZIUM_AVRO ROW SCHEMA LOCATION CONFLUENT SCHEMA REGISTRY 'http://message_queue:8081';

  CREATE TABLE debezium_non_compact (PRIMARY KEY(order_id)) WITH ( ...

• Breaking change: Modifies the syntax for specifying data and encoding formats for a source in CREATE SOURCE and CREATE TABLE commands. For v1.0.0, the old syntax is still accepted but will be deprecated in the next release. #10768

  Old syntax - part 1:

  ROW FORMAT data_format 
  [ MESSAGE 'message' ]
  [ ROW SCHEMA LOCATION ['location' | CONFLUENT SCHEMA REGISTRY 'schema_registry_url' ] ];

  New syntax - part 1:

  FORMAT data_format ENCODE data_encode (
      message = 'message',
      schema_location = 'location' | confluent_schema_registry = 'schema_registry_url'
  );

  Old syntax - part 2:

  ROW FORMAT csv WITHOUT HEADER DELIMITED BY ',';

  New syntax - part 2:

  FORMAT PLAIN ENCODE CSV (
      without_header = 'true',
      delimiter = ','
  );

• Supports sinking data to Delta Lake. #10374, #10580

• Supports sinking data to AWS Kinesis. #10437

• Supports BYTES as a row format. #10592

• Supports specifying schema for the PostgreSQL sink. #10576

• Supports using the user-provided publication to create a PostgreSQL CDC table. #10804

Full Changelog: v0.19.0...v1.0.0

v0.19.3

release v0.19.3

v0.19.2

release v0.19.2