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5 commits

Author SHA1 Message Date
Sergey Petrunya
997445bc8e Make EXPLAIN better at displaying MRR/BKA: 
- "Using MRR" is no longer shown with range access.
- Instead, both range and BKA accesses will show one of the following:
  = "Rowid-ordered scan"
  = "Key-ordered scan"
  = "Key-ordered Rowid-ordered scan"
depending on whether DS-MRR implementation will do scan keys in order, rowids in order,
or both.
- The patch also introduces a way for other storage engines/MRR implementations to
  pass information to EXPLAIN output about the properties of employed MRR scans.
 2011-04-02 14:04:45 +04:00
Sergey Petrunya
59db1d7a39 Address problems uncovered by buildbot 
- Update test results
- Handle the case where MRR implementation doesn't get any key tuples at all
 2010-11-02 19:32:26 +03:00
Sergey Petrunya
2451c38536 Post-merge fixes#1: update test results 2010-11-01 23:52:09 +03:00
Sergey Petrunya
b45748f058 MWL#121: DS-MRR support for clustered primary keys 
- Fix the code to work with IndexConditionPushdown+BKA (EXPLAIN is still 
  incorrect, see comments in the patch)
- Test coverage for ICP+BKA
 2010-06-22 22:38:52 +04:00
Sergey Petrunya
16e197f5b1 MWL#121: DS-MRR support for clustered primary keys 
- Add testcases
- Code cleanup: garbage removal, better comments, make members private where possible
 2010-06-22 21:24:22 +04:00