- Fix a trivial problem when OR-merging two multi-equalities
- Amend testsuite to provide full gcov coverage
mysql-test/r/table_elim.result:
MWL#17: Table elimination:
- Amend testsuite to provide full gcov coverage
mysql-test/t/table_elim.test:
MWL#17: Table elimination:
- Amend testsuite to provide full gcov coverage
- add process-gcov-annotations.pl script that processes .gcov files
according to purecov annotations in source code
- add --gcov-src-dir=subdir option to mysql-test-run so that one can
do gcov processing only for source files in a certain directory.
- Add an @@optimizer_switch flag for table_elimination for debug build
- Better comments
mysql-test/t/index_merge_myisam.test:
MWL#17: Table elimination: last fixes
- Add an @@optimizer_switch flag for table_elimination for debug build
sql/mysql_priv.h:
MWL#17: Table elimination: last fixes
- Add an @@optimizer_switch flag for table_elimination for debug build
sql/mysqld.cc:
MWL#17: Table elimination: last fixes
- Add an @@optimizer_switch flag for table_elimination for debug build
- More testcases
- Set correct dependencies for non-bound multi-equalities.
mysql-test/r/table_elim.result:
MWL#17: Table elimination
- More testcases
mysql-test/t/table_elim.test:
MWL#17: Table elimination
- More testcases
sql/opt_table_elimination.cc:
MWL#17: Table elimination
- Set correct dependencies for non-bound multi-equalities.
- Address review feedback: change expression analyzer used to be a copy-paste
of ref analyzer. ref analyzer, besides doing ref analysis, also collected
info about keys which had sargable predicates. We didn't need that part here.
- Switch from uniform graph to bipartite graph with two kinds of nodes:
"values" (tables and fields) and "modules" (t.col=func(...) equalities,
multi-equalities, unique keys, inner sides of outer joins).
- Rename functions, classes, etc.
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
Added build scripts for 32 bit x86 architecture on Solaris.
Renamed some scripts for consistency.
Changed to dynamic linking of libgcc.
BUILD/compile-solaris-amd64:
Changed to dynamic linking of libgcc.
The -static-libgcc was a legacy of the original build scripts. -R
(analogous to -L link time search path) is a Solaris mechanism to
ensure a needed lib directory is searched at runtime.
In Solaris 10, gcc comes bundled, under /usr/sfw, allowing to use it without
creating dependency problems. This allows eg. benefiting from ordinary system
patch maintenance.
BUILD/compile-solaris-amd64-debug:
Changed to dynamic linking of libgcc.
The -static-libgcc was a legacy of the original build scripts. -R
(analogous to -L link time search path) is a Solaris mechanism to
ensure a needed lib directory is searched at runtime.
In Solaris 10, gcc comes bundled, under /usr/sfw, allowing to use it without
creating dependency problems. This allows eg. benefiting from ordinary system
patch maintenance.
This allows us to skip and speed up some very common character converts that MySQL is doing when sending data to the client
and this gives us a nice speed increase for most queries that uses only characters in the range 0x00-0x7f.
This code is based on Alexander Barkov's code that he has done in MySQL 6.0
include/m_ctype.h:
Added MY_CS_NONASCII marker
libmysqld/lib_sql.cc:
Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
mysys/charset.c:
Mark character sets with MY_CS_NONASCII
scripts/mysql_install_db.sh:
Fixed messages to refer to MariaDB instead of MySQL
sql/protocol.cc:
Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
sql/protocol.h:
Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
sql/sql_string.cc:
Quicker copy of strings with no characters above 0x7f
strings/conf_to_src.c:
Added printing of MY_CS_NONASCII
strings/ctype-extra.c:
Mark incompatible character sets with MY_CS_NONASCII
Removed duplicated character set geostd
strings/ctype-sjis.c:
Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-uca.c:
Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-ucs2.c:
Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-utf8.c:
Mark incompatible character sets with MY_CS_NONASCII
strings/ctype.c:
Added function to check if character set is compatible with latin1 in ranges 0x00-0x7f
- 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
