1456 Lookup expressions filtered by type #1778
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michaelhkay
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Fix #1456
Allows selection of records by type within a JSON tree, for example
$json ?? ~record(first, last) ? last.I'm aware that the use of the tilde here is controversial but I think this kind of query is going to be very common; it needs something simple and I think people will get used to it. No-one has suggested anything that is obviously better, and I propose to also use
~in other similar contexts, for example type patterns in XSLT, which will increase familiarity.I suggest reading
~as "of type".