[SERVER-1837] map/reduce: don't use tmp collections Created: 23/Sep/10  Updated: 12/Jul/16  Resolved: 16/Dec/10

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 1.7.4

Type: Improvement Priority: Major - P3
Reporter: Eliot Horowitz (Inactive) Assignee: Eliot Horowitz (Inactive)
Resolution: Done Votes: 3
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Major Change
Participants:

 Description   

Change output handling for map/reduce.

1) Small results sets should be able to be returned in the command
2) If large, "out" always has to be specified



 Comments   
Comment by auto [ 16/Dec/10 ]

Author:

{u'login': u'erh', u'name': u'Eliot Horowitz', u'email': u'eliot@10gen.com'}

Message: map/reduce no longer uses temp collections.
you have to specify out
SERVER-1837
https://github.com/mongodb/mongo/commit/c0fa67131864a2f2c5cf59f7cb83eb8612ab40b8

Comment by auto [ 15/Dec/10 ]

Author:

{u'login': u'erh', u'name': u'Eliot Horowitz', u'email': u'eliot@10gen.com'}

Message: more map/reduce refactoring for SERVER-1837 (4)
https://github.com/mongodb/mongo/commit/c7700058748d86e0643e2c2461d2673e7ca17bf9

Comment by auto [ 15/Dec/10 ]

Author:

{u'login': u'erh', u'name': u'Eliot Horowitz', u'email': u'eliot@10gen.com'}

Message: more map/reduce refactoring for SERVER-1837 all db access encapsulated
https://github.com/mongodb/mongo/commit/845360735a617684a4b3cafe8d8632cc64695493

Comment by auto [ 15/Dec/10 ]

Author:

{u'login': u'erh', u'name': u'Eliot Horowitz', u'email': u'eliot@10gen.com'}

Message: more map/reduce refactoring for SERVER-1837 (2)
https://github.com/mongodb/mongo/commit/e5d0731c2d1e28b03c0a4bec194126f75bc14752

Comment by auto [ 15/Dec/10 ]

Author:

{u'login': u'erh', u'name': u'Eliot Horowitz', u'email': u'eliot@10gen.com'}

Message: more map/reduce refactoring for SERVER-1837
https://github.com/mongodb/mongo/commit/3ac6dfcd5cb768f793b845d871971133afd73962

Comment by Eliot Horowitz (Inactive) [ 15/Nov/10 ]

may want to change the way tmp collections work...

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