Details
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Bug
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Status: Closed
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Major - P3
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Resolution: Fixed
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4.2.20
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Fully Compatible
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ALL
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QE 2022-08-08
Description
I have a collection with an index declared as: ({siteId: 1, startDate:1, endDate: 1}, {collation: {"locale": "en"}}).
Some aggregate queries generate database errors, such as:
{
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"aggregate" : "MyColl",
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"pipeline" : [{
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"$match" : {
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"siteId": {
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"$oid": "5bfeb296db127e1168efbf13"
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},
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"$or" : [{
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"startDate" : null
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}, {
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"startDate" : {
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"$gte" : "2022-01-01"
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}
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}]
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}
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}, {
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"$sort" : {
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"startDate" : 1,
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"endDate" : 1
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}
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}],
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"collation" : {
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"locale" : "en"
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}
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}
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The database responds:
{
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"ok" : 0.0,
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"errmsg" : "assertion src/mongo/bson/bsonobjbuilder.h:195",
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"code" : 8,
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"codeName" : "UnknownError"
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}
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It only occurs when there are matches where the startDate field is null (undefined).
