[SERVER-85256] Update query system to avoid copying when decompressing BSONColumn Created: 16/Jan/24  Updated: 16/Jan/24

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

Type: Task Priority: Major - P3
Reporter: Chris Wolff Assignee: Backlog - Storage Execution Team
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-85178 Integrate block-based decompressor in... Backlog
depends on SERVER-85254 Update Materializer Interface to prov... Closed
Assigned Teams:
Storage Execution
Participants:

 Description   

Once the query system is updated to use the new API, we can avoid having to do the copying that occurs currently in ts_block.cpp:

https://github.com/10gen/mongo/blob/96960e245961a02f77cfa67717e6a689351bebb5/src/mongo/bson/util/bsoncolumn.h#L549-L556

This depends on the issues below:

  • Query system is using the block-based decompression API
  • Decompression materialize interface updated to include lifetime info

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