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28 commits

Author SHA1 Message Date
Sergey Petrunya
d8efc3b155 DS-MRR improvements: address review feedback for R3 version of the patch 2010-10-26 15:35:13 +04:00
Sergey Petrunya
ac8a79b944 Code cleanup 2010-10-04 10:31:40 +04:00
Sergey Petrunya
5156457506 Address review feedback 
- One iterator class
- Switch back from state automaton into two-nested-iterators approach..
 2010-10-03 14:48:42 +04:00
Sergey Petrunya
22d5323fac DS-MRR/CPK improvements: more of addressing review feedback 2010-10-01 15:54:35 +04:00
Sergey Petrunya
61f26f0c62 DS-MRR improvements: address review feedback 
- change dsmrr_next_from_index() to a switch-based state automaton-like structure.
 2010-09-28 20:20:09 +04:00
Sergey Petrunya
4f56acb676 Better comments, move Lifo_buffer to separate file. 2010-09-28 12:19:50 +04:00
Sergey Petrunya
3066c37718 DS-MRR improvements: review feedback 
- Switch from one bi-directional buffer class to two 
  virtual inheritance-based forward and backward buffer classes.
 2010-09-21 20:19:54 +04:00
Sergey Petrunya
51f9097608 More comments 2010-09-20 23:13:28 +04:00
Sergey Petrunya
2121ab1eb4 DS-MRR improvements: remove write_size/read_size, have the same size 
for writing and reading
 2010-09-20 13:23:51 +04:00
Sergey Petrunya
189555f39a DS-MRR improvements: more code cleanup 
- better comments
- rename variables to better reflect their meaning
 2010-09-20 13:02:17 +04:00
Sergey Petrunya
18a348503a DS-MRR improvements: better comments, use symbolic name instead of +1/-1 constants. 2010-09-19 01:05:47 +04:00
Sergey Petrunya
499b142ad5 BUG#628785: multi_range_read.cc:430: int DsMrr_impl::dsmrr_init(): Assertion `do_sort_keys || do_rowid_fetch' failed 
- Make Ds_MrrImpl::check_cpk_scan() follow the execution code' logic: don't
  do MRR scans on clustered PK when mrr_sort_keys=off.
 2010-09-15 16:58:01 +04:00
Sergey Petrunya
188de43db1 - Fixed BUG#623285: Crash in quick_range_seq_next() in maria-5.3-dsmrr-cpk 
- Relax overly-strict assert added in previous commit
- Run generic MRR testsuite for Maria engine, too.
 2010-09-13 19:45:41 +04:00
Sergey Petrunya
ac3756a1d0 Debug measure: trash unused buffer space 2010-09-12 18:28:19 +04:00
Sergey Petrunya
9b04caffd4 Commit for buildbot checks 2010-09-10 20:48:11 +04:00
Sergey Petrunya
dbc63bed22 MWL#121-125: DS-MRR improvements 
- Address review feedback, step 1
 2010-09-05 14:32:14 +04:00
Sergey Petrunya
937db4bff4 - Remove out-of-date comments 
- Make testcase stable
 2010-08-14 22:35:50 +04:00
Sergey Petrunya
c964cb1b62 key/rowid buffer overflow fixes for various tricky cases. 2010-08-14 18:56:37 +04:00
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
Renamed from sql/ds_mrr.h (Browse further)