ALTER SINK

The ALTER SINK command modifies the metadata of a sink.

info

To modify the SQL definition of a sink, please refer to Alter a streaming job.

Syntax

ALTER SINK sink_name 
    alter_option;

alter_option depends on the operation you want to perform on the sink. For all supported clauses, see the sections below.

Syntax
ALTER SINK sink_name
    OWNER TO new_user;

Parameter or clause	Description
OWNER TO	This clause changes the owner of the sink. This will cascadingly change all related internal-objects as well.
new_user	The new owner you want to assign to the sink.

Example
-- Change the owner of the sink named "sink1" to user "user1"
ALTER SINK sink1 OWNER TO user1;

Syntax
ALTER SINK sink_name
    SET SCHEMA schema_name;

Parameter or clause	Description
SET SCHEMA	This clause moves the sink to a different schema.
schema_name	The name of the schema to which the sink will be moved.

Example
-- Move the sink named "test_sink" to the schema named "test_schema"
ALTER SINK test_sink SET SCHEMA test_schema;

Syntax
ALTER SINK sink_name  
SET PARALLELISM = parallelism_number;

Parameter or clause	Description
SET PARALLELISM	This clause controls the degree of parallelism for the targeted streaming job.
parallelism_number	This parameter can be `ADAPTIVE` or a fixed number, like 1, 2, 3, etc. Altering the parameter to `ADAPTIVE` will expand the streaming job's degree of parallelism to encompass all available units, whereas setting it to a fixed number will lock the job's parallelism at that specific figure. Setting it to `0` is equivalent to `ADAPTIVE`.

Example
-- Set the parallelism of the sink "s" to 4.
ALTER SINK s SET PARALLELISM = 4;

Syntax
ALTER SINK sink_name
    RENAME TO new_name;

Parameter or clause	Description
RENAME TO	This clause changes the name of the sink.
new_name	The new name of the sink.

Example
-- Change the name of the sink named "sink0" to "sink1"
ALTER SINK sink0 RENAME TO sink1;