The stream driver USES row level locks.

流驱动程序将使用低级锁。

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For MDC tables, the selection of BLOCKINSERT may improve the performance of INSERT operations by locking at the block level and avoiding row locks for INSERT operations.

对于mdc表，选择BLOCKINSERT可以提高INSERT操作的性能，因为使用的是块级的锁，避免了为INSERT操作使用行锁。

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These locks could be table level, row level, or lock on index, and so on.

这些锁可以是表级锁、行级锁、索引锁等等。

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