fix(schema): avoid throwing duplicate index error if index spec keys have different order or index has a custom name #15112
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Fix #15109
Summary
#15109 points out that if index spec has keys in different order, that is still valid. So
schema.index({ a: 1, b: 1 }); schema.index({ b: 1, a: 1 })
should work. Also, if there is a custom indexname
, then that is fine too, because MongoDB enforces index uniqueness based onname
. It's just that two indexes with the same spec will have the samename
unless an explicitname
option is specified in the index options.Examples