finding euclidean distance, square euclidean distance rounding the precision value

CBL-2.8.0-153
late seen: It is been failing from last release.
SG version: 2.7.0-166 or 2.8.0-374
SG config:
{
"SSLCert": "sg_cert.pem",
"SSLKey": "sg_privkey.pem",
"adminInterface": "0.0.0.0:4985",
"compressResponses": false,
"databases": {
"db": {
"allow_conflicts": false,
"bucket": "travel-sample",
"delta_sync":

,
"enable_shared_bucket_access": true,
"import_docs": true,
"num_index_replicas": 0,
"password": "password",
"server": "http://192.168.33.10:8091",
"username": "travel-sample"
}
},
"interface": ":4984",
"logging": {
"debug":

},
"maxFileDescriptors": 90000,
"maxIncomingConnections": 0
}
}

--Steps to reproduce:

1. Create docs with x,y,z coordinates ex: [[3, 6, 10], [34, 23, 4]]
2. find the euclidean distance, square euclidean distance, and cosine distance
Expected euclidean distance: 35.86084215408221
Actual euclidean distance :35.8608421540822

Expected cosine distance: 0.43620415177230565
Actual cosine distance :0.436204151772306

• Github link for the code:

https://github.com/couchbaselabs/mobile-testkit/blob/master/testsuites/CBLTester/CBL_Functional_tests/TestSetup_FunctionalTests/test_predective_queries.py#L89

• Jenkins job failure link:
  http://uberjenkins.sc.couchbase.com:8080/job/CBLITE_DOTNET-Net-windows-TestSever-Functional-XATTRS-tests/29/testReport/testsuites.CBLTester.CBL_Functional_tests.TestSetup_FunctionalTests/test_predective_queries/test_predictiveQueries_euclideanCosineDistance_coordinates5_35_86084215408221_1286_0_43620415177230565_/

• Pytest Command:
  pytest -s --timeout 1800 --liteserv-version=2.8.0-153 --liteserv-host=localhost --liteserv-port=8080 --delta-sync --xattrs --sg-ssl --no-conflicts --enable-file-logging --sync-gateway-version=2.8.0-373 --mode=cc --server-version=6.5.1-6299 --liteserv-platform=net-uwp --create-db-per-test=cbl-test --junitxml=results/results.xml testsuites/CBLTester/CBL_Functional_tests/TestSetup_FunctionalTests -k "test_predictiveQueries_euclideanCosineDistance[coordinates5-35.86084215408221-1286-0.43620415177230565]"

• What is the last build this test passed: always failed

In the logs query looks like below:

20:06:00.746054| [Query]: (XQuery) [Thread Pool Worker (13)] Query encoded as {"WHAT":[["EUCLIDEAN_DISTANCE()",[".abc"],[".def"],2]]}

20:06:00.746215| [Query]: {Query#4} Compiling JSON query: {"WHAT":[["EUCLIDEAN_DISTANCE()",[".abc"],[".def"],2]]}

20:06:00.746336| [Query]: {Query#4} Compiled as SELECT fl_result(euclidean_distance(fl_value(_doc.body, 'abc'), fl_value(_doc.body, 'def'), 2)) FROM kv_default AS _doc WHERE (_doc.flags & 1 = 0)

20:06:00.746532| [Query]: {QueryEnum#5} Created on {Query#4} with 1 rows (18 bytes) in 0.030ms

20:06:00.746660| [Query]: (QueryResultSet) [Thread Pool Worker (13)] Beginning query enumeration (6000024e43d0)

20:06:00.747111| [Query]: (QueryResultSet) [Thread Pool Worker (13)] End of query enumeration (6000024e43d0)

20:06:00.747196| [Query]: {QueryEnum#5} Deleted

20:06:00.750771| [Query]: (XQuery) [Thread Pool Worker (14)] Query encoded as {"WHAT":[["COSINE_DISTANCE()",[".abc"],[".def"]]]}

20:06:00.750894| [Query]: {Query#6} Compiling JSON query: {"WHAT":[["COSINE_DISTANCE()",[".abc"],[".def"]]]}

20:06:00.750993| [Query]: {Query#6} Compiled as SELECT fl_result(cosine_distance(fl_value(_doc.body, 'abc'), fl_value(_doc.body, 'def'))) FROM kv_default AS _doc WHERE (_doc.flags & 1 = 0)