map_from_entries function

Applies to: Databricks SQL Databricks Runtime

Creates a map created from the specified array of entries.

Syntax

map_from_entries(expr)

Arguments

• expr: An ARRAY expression of STRUCT with two fields.

Returns

A MAP where keys are the first field of the structs and values the second. There must be no duplicates or nulls in the first field (the key).

Examples

> SELECT map_from_entries(array(struct(1, 'a'), struct(2, 'b')));
 {1 -> a, 2 -> b}

Related functions

• map function

• map_concat function

• map_entries function

• map_filter function

• map_from_arrays function

• map_keys function

• map_values function

• map_zip_with function