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SQL Explained

Executed SQL
EXPLAIN SELECT ••• `datafile_datafile`.`id`, `datafile_datafile`.`date_created`, `datafile_datafile`.`added_by_id`, `datafile_datafile`.`name`, `datafile_datafile`.`file`, `datafile_datafile`.`file_type`, `datafile_datafile`.`task_state`, `datafile_datafile`.`task_id`, `datafile_datafile`.`task_log`, `datafile_datafile`.`content_type_id`, `datafile_datafile`.`object_id` FROM `datafile_datafile` WHERE (`datafile_datafile`.`object_id` IS NULL AND `datafile_datafile`.`content_type_id` = 42 AND `datafile_datafile`.`file_type` = 10 ) LIMIT 1
Time
0.25 ms
Database
default
ID SELECT_TYPE TABLE TYPE POSSIBLE_KEYS KEY KEY_LEN REF ROWS EXTRA
1 SIMPLE None None None None None None None Impossible WHERE