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MySQL 1224: Partition not empty.
When encountering the error 1224: Partition not empty in MySQL, follow these steps:
- Identify the affected table and partition:
SELECT TABLENAME, PARTITIONNAME FROM informationschema.partitions WHERE TABLESCHEMA = 'yourdatabasename' AND TABLENAME = 'yourtable_name';
- Check the data in the specific partition to understand why it's not empty:
SELECT * FROM yourtablename PARTITION(partition_name) LIMIT 10;
- If it's safe to remove the data, you can either delete specific rows:
DELETE FROM yourtablename PARTITION(partition_name) WHERE condition;
Or, if intending to remove all data from the partition:TRUNCATE TABLE yourtablename PARTITION(partition_name);
- After ensuring the partition is empty, retry the operation that caused the error.
- If the issue persists, check for foreign key constraints or triggers that might automatically populate the partition:
SELECT TABLENAME, COLUMNNAME, CONSTRAINTNAME, REFERENCEDTABLENAME, REFERENCEDCOLUMNNAME FROM informationschema.KEYCOLUMNUSAGE WHERE TABLESCHEMA = 'yourdatabasename' AND TABLENAME = 'yourtablename';SHOW TRIGGERS FROM yourdatabasename LIKE 'yourtablename';
6. Adjust the data manipulation logic or constraints as necessary, ensuring no new data is automatically added to the partition during the operation.
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