Description
Converts a map to a URL query string (key1=value1&key2=value2)
Syntax
MapToQueryString(map_expression)
Arguments
map_expression (map) - The map to convert to a query string.
Examples
MapToQueryString(TOMAP('k1','v1','k2','v2'))
returns k1=v1&k2=v2
Return value datatype
The function returns a string
Impact of null value
If the map_expression is null, null is returned.