map_keys
function
Applies to: Databricks SQL Databricks Runtime
Returns an unordered array containing the keys of map
.
Syntax
map_keys(map)
Arguments
map
: A MAP expression.
Returns
An ARRAY where the element type matches the map
key type.
Examples
> SELECT map_keys(map(1, 'a', 2, 'b'));
[1,2]
Related functions
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