[SEDONA-648] Throw unsupported operation exception when ST_KNN is used as UDF #1587
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Did you read the Contributor Guide?
Is this PR related to a JIRA ticket?
[SEDONA-XXX] my subject.What changes were proposed in this PR?
This PR prevents users to spark optimizer to use ST_KNN or ST_AKNN is used as UDF.
How was this patch tested?
KnnJoinSuite
Did this PR include necessary documentation updates?