ClickHouse Index Creation Guide

In ClickHouse, you can create an index using the following syntax:

CREATE INDEX index_name ON table_name (column_name);

其中，index_name represents the name of the index, table_name is the name of the table where the index will be created, and column_name is the name of the column on which the index will be created.

For example, to create an index named my_index on a table named my_table, you can use the following syntax:

CREATE INDEX my_index ON my_table (column_name);

It is important to note that ClickHouse supports various types of indexes, such as ordinary indexes, merge tree indexes, inverted indexes, etc. The specific type of index to create depends on business needs and data characteristics. When creating an index, the appropriate type of index can be selected according to the requirements.