variant_contains: initial implementation #50
Description
variant_contains(VariantArray, path)
https://github.com/datafusion-contrib/datafusion-functions-json/blob/main/src/json_contains.rs
Returns Bool if the key/index exists within the Variant value at the given path.
Arguments
- VariantArray -- a list of variant values
- path -- the variant path string
Returns
- Boolean (Nullable)