Support passing partition value as a parameter to ALTER TABLE t DROP PARTITION

[davenger]

Currently partition can be passed as a parameter only inside tuple() function

ALTER TABLE test DROP PARTITION tuple(toMonday({partition:Date}));

But users would prefer to be able to pass it directly:

ALTER TABLE test DROP PARTITION {partition:String};
ALTER TABLE test DROP PARTITION {partition:Date};

Here are the steps

CREATE OR REPLACE TABLE default.test
(

   EventDate Date
)
ENGINE = MergeTree
ORDER BY tuple()
PARTITION BY toMonday(EventDate);


ALTER TABLE test DROP PARTITION '2023-04-10'; -- works


SET param_table=test;
ALTER TABLE {table:Identifier} DROP PARTITION '2023-04-10' -- works;


SET param_partition='2023-04-10';

ALTER TABLE test DROP PARTITION tuple(toMonday({partition:Date})); -- works

ALTER TABLE test DROP PARTITION {partition:Identifier}; -- doesn't work
ALTER TABLE test DROP PARTITION '{partition:Identifier}'; -- doesn't work
ALTER TABLE test DROP PARTITION {partition:String}; -- doesn't work