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BUG#48447, BUG#48161, fixed a regression from fix of BUG#6045, where binary collations can use indexes/partition pruning for cases using equality conditions, however it cannot be used for any other condition like <, >, <=, >=, <>, also added test case for verification of BUG#47774 in this patch

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This commit is contained in:
Mikael Ronstrom
2009-11-05 15:42:03 +01:00
parent 16b603a8b0
commit ca9fe97e9f
5 changed files with 128 additions and 1 deletions
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3
sql/opt_range.cc
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@ -5882,7 +5882,8 @@ get_mm_leaf(RANGE_OPT_PARAM *param, COND *conf_func, Field *field,
value->result_type() == STRING_RESULT &&
key_part->image_type == Field::itRAW &&
((Field_str*)field)->charset() != conf_func->compare_collation() &&
!(conf_func->compare_collation()->state & MY_CS_BINSORT))
!(conf_func->compare_collation()->state & MY_CS_BINSORT &&
(type == Item_func::EQUAL_FUNC || type == Item_func::EQ_FUNC)))
goto end;
if (param->using_real_indexes)