杨卓

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> Could you provide more context? How did you tell the C++ reader to read only row 100 and 130 out of an ORC file? Through the index we built...

> An error will occur if a user attempts to read line 129 after reading line 130 without performing SeekToRowGroup again. We will ensure that we seek and read in...

like this in SeekToRow function ``` auto targetRowInStripe = rowNumber - firstRowOfStripe_[seekToStripe]; if (currentStripe_ == seekToStripe && isCurrentStripeInited() && currentRowInStripe_ < targetRowInStrip && currentRowInStripe_ / rowIndexStride == targetRowInStripe / rowIndexStride)...

This may be rare in offline batch processing scenarios. However, it may be common to use orc as the storage format for real-time data warehouses to provide online query services....