google cloud datastore - can specific elements within an array be excluded from indexes? -


i'm working on storing json documents on google cloud datastore using nodejs client library , working on adding indexes needed. far have excluded json properties indexes:

{     "name": "partition",     "value": "02",     "excludefromindexes": true }

and entire arrays:

{     "name": "lineitems",     "value": [{         "prodid": "aaaaa",         "sizecode": 5,         "itemid": 11111,         "sizecodelongdesc": "large",         "quantity": 6,         "returnedquantity": 0     }, {         "prodid": "ddddd",         "sizecode": 5,         "itemid": 22222,         "sizecodelongdesc": "large",         "quantity": 6,         "returnedquantity": 0     }],     "excludefromindexes": true }

however, i'm facing problems exclude particular field on array entries, instance, exclude itemid using example above. possible on datastore ? or entire arrays included or excluded indexes ?

thanks


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