fix(query): off-by-one bug in read size check after read (#513)

alpacahq · Oct 3, 2021 · 5211168 · 5211168
1 parent 038ab37
commit 5211168
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/executor/scanner.go b/executor/scanner.go
@@ -587,7 +587,7 @@ func (ex *ioExec) readBackward(finalBuffer []byte, fp *ioFilePlan,
 		// Copy the found data into the final buffer in reverse order
 		if numRead != 0 {
 			bytesRead += numRead
-			if numRead <= bytesToRead {
+			if numRead < bytesToRead {
 				bytesToRead -= numRead
 				copy(finalBuffer[bytesToRead:], fileBuffer)
 			} else {