groupArray
Syntax: groupArray(x)
or groupArray(max_size)(x)
Creates an array of argument values.
Values can be added to the array in any (indeterminate) order.
The second version (with the max_size
parameter) limits the size of the resulting array to max_size
elements. For example, groupArray(1)(x)
is equivalent to [any (x)]
.
In some cases, you can still rely on the order of execution. This applies to cases when SELECT
comes from a subquery that uses ORDER BY
.
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