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| author | unknown <monty@narttu.mysql.fi> | 2003-05-27 18:40:37 +0300 |
|---|---|---|
| committer | unknown <monty@narttu.mysql.fi> | 2003-05-27 18:40:37 +0300 |
| commit | ef6d3a806085efdc138e6e894a832e4330692e64 (patch) | |
| tree | bc5052caf5ad47985df6d6862e6380f64e895fb2 /Docs | |
| parent | 1540912eca3b2daee03d78e85b39b3d19c192f15 (diff) | |
| download | mariadb-git-ef6d3a806085efdc138e6e894a832e4330692e64.tar.gz | |
ORDER BY optimization
Fixed new bug when reading field types
client/mysql.cc:
Fixed output for -T
libmysql/libmysql.c:
Filled missing fields in new MYSQL_FIELD structure
Fixed new bug when reading field types
mysql-test/r/order_by.result:
Result after new order by optimization
sql/opt_range.cc:
New ORDER BY optimization
sql/opt_range.h:
New ORDER BY optimization
sql/set_var.cc:
Speed optimization
sql/sql_select.cc:
New ORDER BY optimization
This alllows MySQL to change a ref/range index from (a,b) to (a,c) when 'b' was not used to find rows and one did
ORDER BY a,c or ORDER BY c
Diffstat (limited to 'Docs')
0 files changed, 0 insertions, 0 deletions