Details
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New Feature
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Status: Closed
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Major - P3
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Resolution: Fixed
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None
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Fully Compatible
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Query 2019-12-02
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Description
The query team has discussed and decided on the following syntax/semantics:
Name: $binarySize
Alternate Names: $binSize, $byteSize
This expression takes an expression that evaluates to a string or BinData and return the size of the value in bytes. It will error if the result evaluates to a type other than string, BinData, or null. Given nullish, returns null.
Syntax:
{ $binarySize: <Expression> }
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Original Description
Implement an aggregation expression that return the length of BinData type value.
This would work much in the same way as SERVER-14670
Examples
Input
db.coll.insert({_id: 0, bin: new BinData(3, "OEJTfmD8twzaj/LPKLIVkA==")}) |
Pipeline
db.coll.aggregate([{
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$project: {
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"BinLength": {$binLenBytes: "$bin"} |
}
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}])
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Output
{_id: 0, BinLength: 16} |
Attachments
Issue Links
- is documented by
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DOCS-13185 Investigate changes in SERVER-30967: Add $binarySize expression
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- Closed
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- related to
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SERVER-33582 Add $bsonSize expression
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- Closed
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