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Update AsynchronousReadIndirectBufferFromRemoteFS.cpp

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Kseniia Sumarokova 2021-11-08 22:12:04 +03:00 committed by GitHub
parent 1167e5aae8
commit c458f73138
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src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
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@ -60,7 +60,7 @@ String AsynchronousReadIndirectBufferFromRemoteFS::getFileName() const
bool AsynchronousReadIndirectBufferFromRemoteFS::hasPendingDataToRead()
{
/**
* Note: read_until_position here can be zero only for non-MergeTree tables.
* Note: read_until_position here can be std::nullopt only for non-MergeTree tables.
* For mergeTree tables it must be guaranteed that setReadUntilPosition() or
* setReadUntilEnd() is called before any read or prefetch.
* setReadUntilEnd() always sets read_until_position to file size.