In MySQL, just like Oracle, if you're defining a primary key or unique key on a partitioned table, the partition key column must be part of every unique key. This means, if you're partitioning by a date column, that column needs to be part of any primary or unique key.
Unlike Oracle's interval partitioning which automatically creates new partitions for new data, MySQL does not have such a feature natively. In MySQL, you'd have to manage and create partitions manually ahead of time. If an appropriate partition does not exist for data, the insert will indeed fail. Automating this process would typically require a custom script or scheduled task to pre-create partitions for future dates.
In MySQL, there's no distinction between local and global indexes as there is in Oracle. When you create an index on a partitioned table in MySQL, it essentially becomes a 'local' index, meaning each partition has its own distinct set of index data. There's no equivalent to Oracle's global index in MySQL's partitioning model.
For MySQL 5.7, the default limit is 8192 partitions. However, having thousands of partitions on a single table may lead to its own management and performance challenges, so always consider the specific needs and access patterns of your application.
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