[SERVER-1032] Map from multiple collections with single reduce Created: 20/Apr/10 Updated: 21/Apr/10 Resolved: 21/Apr/10 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | New Feature | Priority: | Major - P3 |
| Reporter: | Dan Shryock | Assignee: | Eliot Horowitz (Inactive) |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Participants: |
| Description |
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Basically I would like to see a feature that would allow a map reduce job to run across multiple source collections, each with its own map function, and then have the values emitted be processed by a single reduce function. This could be used to support very simple join scenarios where the reduce function manually joins the different pieces of data that have been emitted for a given key. |
| Comments |
| Comment by Eliot Horowitz (Inactive) [ 21/Apr/10 ] |
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I think |