Try this:
let $maps := ( map:entry(0, "red"), map:entry(1, "green"), map:entry(1, "blue") ) return map:merge( for $map in $maps for $key in map:keys($map) group by $key return map { $key : $map ! .($key) } )
This is an equivalent, possibly better readable, solution:
let $maps := ( map:entry(0, "red"), map:entry(1, "green"), map:entry(1, "blue") ) let $keys := distinct-values( for $map in $maps return map:keys($map) ) return map:merge( for $key in $keys let $value := for $map in $maps return $map($key) return map { $key : $value } )
On Wed, Dec 23, 2015 at 11:04 PM, Ron Katriel rkatriel@mdsol.com wrote:
Hi,
I am using map:merge to construct a map from smaller maps and would like to preserve values when keys agree. For example, when calling
map:merge((map:entry(0, "red"), (map:entry(1, "green"), map:entry(1,"blue")))
I would like to get back something like
map { 0: "red", 1: ("green", "blue") }The default (W3C) behavior is to drop "green" in favor of "blue".
Is there a simple way to accomplish this? I realize the above example is mixing types so presumably a solution would have all values as sets.
Thanks, Ron