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serg@serg.mylan authoredDon't rely on table->null_row when no index is used - it may be a multi-table search
serg@serg.mylan authoredDon't rely on table->null_row when no index is used - it may be a multi-table search
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Don't rely on table->null_row when no index is used - it may be a multi-table search
Don't rely on table->null_row when no index is used - it may be a multi-table search