[SERVER-8582] Extend document expression language in aggregation to support advanced document filtering. - MongoDB Jira

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For field-level access control type applications.

is depended on by

DOCS-1833 Document $redact stage in aggregation

is related to

SERVER-9606 $cond operator should allow $match as a boolean expression

SERVER-1105 access control per collection

SERVER-4899 aggregation: need an expression to give the size of an array in projections

SERVER-5239 $project should have numeric type coercion operators

SERVER-5781 Implement $addFields aggregation stage for using expression language to add new fields to a document

SERVER-5947 Add ability to project key names as values and values as key names

SERVER-6146 aggregation framework should have an $in expression

SERVER-6203 Aggregation operators should have well defined implicit type coercion behavior.

SERVER-5919 Add set/array operations to $unwind in new aggregation framework

SERVER-8892 Use $regex as the expression in a $cond

(6 is related to)