How to Use Query Parameters in ClickHouse

Query parameters allow you to write generic queries that contain abstract placeholders instead of concrete identifiers. In this video, we discuss the details of how to define and use query parameters in ClickHouse.

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[andrewzolotukhin]

Nice! Having a "Identifer" option is clever and definitely will be helpful for some cases.

[OlegGalizin]

How the parameters can be set to NULL?
For example
create table t(id int primary key, s String NULL);
insert into t values(1, {PARAM1:String});

[vdecadence]

Does this protect from SQL injections?

[barkintuncer]

Is it possible to use Identifier parameter to sort columns?