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Version: Latest-3.2

CREATE INDEX

Description​

This statement is used to create indexes. You can use this statement to create oly Bitmap indexes. For usage notes and scenarios of Bitmap indexes, see Bitmap index.

tip

This operation requires the ALTER privilege on the target table. You can follow the instructions in GRANT to grant this privilege.

Syntax​

CREATE INDEX index_name ON table_name (column [, ...],) [USING BITMAP] [COMMENT 'balabala']

Note:

  1. For the naming conventions of indexes, see System limits.
  2. One column can have only one BITMAP index. If a column already has an index, you cannot create one more index on it.

Examples​

  1. Create bitmap index for siteid on table1.

    CREATE INDEX index_name ON table1 (siteid) USING BITMAP COMMENT 'balabala';