This is identical to what we saw above with autotrace, except we get to see that partition pruning did actually take place.
除了真实的看到区截断的确发生了,这与我们用AUTOTRACE的结果一致。
This is identical to what we saw above with autotrace, except we get to see that partition pruning did actually take place.
除了真实的看到区截断的确发生了,这与我们用AUTOTRACE的结果一致。
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