Description
An attempt to create a wildcard index under FCV 4.0 with a 4.1/4.2 binary, mongod returns the following error:
{
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"ok" : 0,
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"errmsg" : "Unknown index plugin 'wildcard'",
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"code" : 67,
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"codeName" : "CannotCreateIndex"
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}
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We should change this error to state that featureCompatibilityVersion must be 4.2 to create a wildcard index.