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MDEV-3858 Change JOIN_TAB::records_read from ha_rows to double

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Currently JOIN_TAB::records_read is of type ha_rows.
This is an integer type, which prevents proper selectivity and rows estimates.
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unknown
2012-11-15 12:54:50 +02:00
parent dbb8d954fd
commit cd2feb659b
4 changed files with 16 additions and 15 deletions
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4
sql/sql_select.h
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@ -280,8 +280,8 @@ typedef struct st_join_table {
*/
double read_time;
/* psergey-todo: make the below have type double, like POSITION::records_read? */
ha_rows records_read;
/* Copy of POSITION::records_read, set by get_best_combination() */
double records_read;
/* Startup cost for execution */
double startup_cost;