Port Batch Key Access patches from 6.0-bka

Registered by Monty Taylor

This blueprint has been superseded. See the newer blueprint "Remove Multi Range Read (MRR) Optimization code" for updated plans.

There is a branch of 6.0 that contains patches to implement batched nested loop join in the optimizer. These need to be ported to Drizzle, because bka is good, especially for things like cluster, or other storage engines that might come along that shard data across multiple hosts.

Blueprint information

Status:
Complete
Approver:
None
Priority:
High
Drafter:
Monty Taylor
Direction:
Approved
Assignee:
None
Definition:
Superseded
Series goal:
None
Implementation:
Not started
Milestone target:
None
Completed by
Padraig O'Sullivan

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