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60 Commits

Author SHA1 Message Date
Sergey Petrunya
d098596ba5 Fix a number of problems with reverse buffer use 2010-08-12 23:59:29 +04:00
Sergey Petrunya
8d07c16ad9 Do dynamic buffer growing/shrinking. 2010-08-12 21:18:41 +04:00
Sergey Petrunya
8dc81f47ef Use reverse/backwards buffer for keys (now works) 
- don't allocate space for rowid buffer when we don't really need it.
- fix buffer iterator
 2010-08-11 14:54:34 +04:00
Sergey Petrunya
e25db795bd DS-MRR, key-ordered retrievals: commit for buildbot 2010-08-08 11:13:54 +04:00
Sergey Petrunya
7391175d7e DS-MRR support improvements (MWL#123, MWL#124, MWL#125) 
- Let DS-MRR/CPK take advantage of materialized keys, when possible
 2010-07-18 01:05:44 +04:00
Sergey Petrunya
e0999cdf7c DS-MRR support improvements (MWL#123, MWL#124, MWL#125) 
- Lots of TODO comments
- add mrr_sort_keys flag to @@optimizer_switch
- [from Igor] SQL layer part passes HA_MRR_MATERIALIZED_KEYS flag
- Don't call rnd_pos() many times in a row if sorted rowid buffer
  has the same rowid value for multiple consequive (rowid, range_id) pairs.
 2010-07-17 18:03:50 +04:00
Sergey Petrunya
488d352a66 MWL#121: DS-MRR support for clustered primary keys 
- Remove back key_parts from multi_range_read_init() parameters
- Related code simplification/cleanup
 2010-06-22 23:26:11 +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
Sergey Petrunya
925e508a2e MWL#121: DS-MRR support for clustered primary keys 
- First code (will need code cleanup)
 2010-06-19 15:40:19 +04:00
Sergey Petrunya
da5edf5057 MWL#67: MRR backport 
- Make index condition pushdown be controlled by an @@optimizer_switch flag,
  not by @@engine_condition_pushdown
- Make MRR buffer size be controlled by @@mrr_buffer_size, not 
  by @@read_rnd_buffer_size
- Move parts of code to separate files
- Code cleanup
- Add --sorted_result to some SELECTs in tests.
 2009-12-22 15:33:21 +03:00