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Type: New Feature
Resolution: Duplicate
Priority: Major - P3
Fix Version/s: None
Affects Version/s: None
Component/s: Querying
Labels:
None

Confidence Status:
None
Work Order:
3

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name:
None
Goal Link:
None

A standard index won't tell us if a field is missing or null, but a sparse index only contains entries for fields that are present.

duplicates

SERVER-10026 New query system

Closed

is duplicated by

SERVER-4578 $exists and sparse index

Closed

SERVER-4543 $exists: true does not use sparse index

Closed

related to

SERVER-12557 $exists could use index

Closed

Assignee:: David Storch
Reporter:: Aaron Staple (Inactive)
Participants:: Aaron Staple, David Storch
Votes:: 10 Vote for this issue
Watchers:: 11 Start watching this issue

Created:: Nov 01 2011 11:37:00 PM UTC
Updated:: Jan 28 2015 08:58:40 PM UTC
Resolved:: Jan 28 2015 08:58:40 PM UTC