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-rw-r--r--sql/field.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/field.cc b/sql/field.cc
index 8368b18e78a..75b3e0add3d 100644
--- a/sql/field.cc
+++ b/sql/field.cc
@@ -433,7 +433,7 @@ void Field::store_time(TIME *ltime,timestamp_type type)
bool Field::optimize_range(uint idx)
{
- return !test(table->file->index_flags(idx) & HA_WRONG_ASCII_ORDER);
+ return test(table->file->index_flags(idx) & HA_READ_RANGE);
}
/****************************************************************************