Copying the schema of a tableSQL

We can use `LIMIT` to copy the schema of an existing table without repeating the specification of its column names/types.

Execute this SQL

COPY (FROM VALUES ('foo', 10/9), ('bar', 50/7), ('qux', 9/4) t(s, x))
TO 'example.csv';

CREATE TABLE tbl AS
    FROM example
    LIMIT 0;
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