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202,617 Commits 3,128 Branches 361 Tags
11.4-mdev-36389-indexed-text-column-wrong-result
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110 Commits

Author SHA1 Message Date
Sergey Petrunya
a28390364b MWL#17: Table elimination 
- Better comments

sql/sql_select.cc:
  MWL#17: Table elimination
  - Fix buildbot failure: do set correct value to nested_join::n_tables
 2009-08-13 23:10:53 +04:00
Sergey Petrunya
536754c8c6 MWL#17: Table elimination 
Fixes after post-review fixes:
- Don't search for tables in JOIN_TAB array. it's not initialized yet.
  use select_lex->leaf_tables instead.
 2009-08-13 13:36:13 +04:00
Sergey Petrunya
40bb97b525 MWL#17: Table elimination 
- When making inferences "field is bound" -> "key is bound", do check 
  that the field is part of the key
 2009-08-13 04:01:43 +04:00
Sergey Petrunya
b032c7d833 MWL#17: Table elimination 
- Continue addressing review feedback: remove "unusable KEYUSEs" 
  extension as it is no longer needed.

sql/item.h:
  MWL#17: Table elimination
  - Code cleanup
sql/opt_table_elimination.cc:
  MWL#17: Table elimination
  - Code cleanup
 2009-08-13 03:43:02 +04:00
Sergey Petrunya
854bb82bd8 MWL#17: Table elimination 
Address review feedback: 
- Change from Wave-based approach (a-la const table detection) to 
  building and walking functional dependency graph.
- Change from piggy-backing on ref-access code and KEYUSE structures
  to using our own expression analyzer.


sql/item.cc:
  MWL#17: Table elimination
  - Move from C-ish Field_processor_info to C++ ish and generic Field_enumerator
sql/item.h:
  MWL#17: Table elimination
  - Move from C-ish Field_processor_info to C++ ish and generic Field_enumerator
sql/sql_bitmap.h:
  MWL#17: Table elimination
  - Backport of Table_map_iterator from 6.0
 2009-08-13 02:34:21 +04:00
Sergey Petrunya
7b3d464578 MWL#17: Table elimination 
- More comments
- Renove old code
 2009-06-30 17:20:18 +04:00
Sergey Petrunya
8156d9eb0a MWL#17: Table elimination 
- Last fixes

sql/item.cc:
  MWL#17: Table elimination
  - Don't make multiple calls of ::walk(check_column_usage_processor),
    call once and cache the value
sql/item.h:
  MWL#17: Table elimination
  - s/KEYUSE::usable/KEYUSE::type/, more comments
sql/opt_table_elimination.cc:
  MWL#17: Table elimination
  - Don't make multiple calls of ::walk(check_column_usage_processor),
    call once and cache the value
sql/sql_select.cc:
  MWL#17: Table elimination
  - s/KEYUSE::usable/KEYUSE::type/, more comments
sql/sql_select.h:
  MWL#17: Table elimination
  - s/KEYUSE::usable/KEYUSE::type/, more comments
sql/table.h:
  MWL#17: Table elimination
  - Better comments
 2009-06-30 17:11:00 +04:00
Sergey Petrunya
9fa1bce436 MWL#17: Table elimination 
mysql-test/r/table_elim.result:
  MWL#17: Table elimination
  - More tests
mysql-test/t/table_elim.test:
  MWL#17: Table elimination
  - More tests
sql/opt_table_elimination.cc:
  MWL#17: Table elimination
  - Code cleanup
sql/sql_select.cc:
  MWL#17: Table elimination
  - Code cleanup
sql/sql_select.h:
  MWL#17: Table elimination
  - Code cleanup
sql/table.h:
  MWL#17: Table elimination
  - Code cleanup
 2009-06-29 17:51:15 +04:00
Sergey Petrunia
d764108a2c MWL#17: Table elimination 
- Better comments, variable/function renames
 2009-06-26 00:07:29 +04:00
Sergey Petrunia
4102605fba MWL#17: Table elimination 
- Moved table elimination code to sql/opt_table_elimination.cc
- Added comments 

.bzrignore:
  MWL#17: Table elimination
  - Moved table elimination code to sql/opt_table_elimination.cc
libmysqld/Makefile.am:
  MWL#17: Table elimination
  - Moved table elimination code to sql/opt_table_elimination.cc
sql/CMakeLists.txt:
  MWL#17: Table elimination
  - Moved table elimination code to sql/opt_table_elimination.cc
sql/Makefile.am:
  MWL#17: Table elimination
  - Moved table elimination code to sql/opt_table_elimination.cc
 2009-06-25 14:05:53 +04:00