Comment 2 for bug 918056
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| Baron Schwartz (baron-xaprb) wrote Re: "Cannot nibble table" when running pt-table-sync | #2 |
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f33e652
(Get the code!)
I think we're going to need to make the code handle this by testing whether EXPLAIN shows not only no index chosen, but also a large number of rows (larger than expected). If for some reason it's ignoring the index but there aren't many rows, that should be OK.