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Syntax

ALTER INDEX index_name
    alter_option;
alter_option depends on the operation you want to perform on the index. For all supported clauses, see the sections below.

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Clause

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RENAME TO

ALTER INDEX index_name
    RENAME TO new_name;
Parameter or clauseDescription
RENAME TOThis clause changes the name of the index. If the index is associated with a table constraint (either UNIQUE, PRIMARY KEY, or EXCLUDE), the constraint is renamed as well. There is no effect on the stored data.
new_nameThe new name of the index.
-- Change the name of the index "idx_1" to "idx_2"
ALTER INDEX idx_1 RENAME TO idx_2.

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SET PARALLELISM

ALTER INDEX index_name
SET PARALLELISM { TO | = } parallelism_number;
Parameter or clauseDescription
SET PARALLELISMThis clause controls the degree of parallelism for the targeted streaming job.
parallelism_numberCan be ADAPTIVE or a fixed number (e.g., 1, 2, 3). Setting it to ADAPTIVE expands the job’s parallelism to all available units, while a fixed number locks it at that value. Setting it to 0 is equivalent to ADAPTIVE. The maximum allowed value is determined by the max_parallelism of the job. For more information, see Configuring maximum parallelism.
-- Set the parallelism of the index "idx_orders" to 3.
ALTER INDEX idx_orders SET PARALLELISM = 3;