refactor: Directly swap two variables to optimize code

jingchanglu · jingchanglu · commit 6897c9d25d77 · 2024-09-21T10:47:11.000+08:00
Signed-off-by: jingchanglu &lt;jingchanglu@outlook.com&gt;
diff --git a/embedded/sql/file_sort.go b/embedded/sql/file_sort.go
@@ -153,9 +153,7 @@ func (s *fileSorter) mergeAllChunks() (resultReader, error) {
 			newChunks[len(chunks)/2] = lastChunk
 		}
 
-		temp := currFile
-		currFile = outFile
-		outFile = temp
+		currFile, outFile = outFile, currFile
 
 		_, err = outFile.Seek(0, io.SeekStart)
 		if err != nil {

Original file line number	Diff line number	Diff line change
`@@ -153,9 +153,7 @@ func (s *fileSorter) mergeAllChunks() (resultReader, error) {`
`153`	`153`	`newChunks[len(chunks)/2] = lastChunk`
`154`	`154`	`}`
`155`	`155`
`156`		`- temp := currFile`
`157`		`- currFile = outFile`
`158`		`- outFile = temp`
	`156`	`+ currFile, outFile = outFile, currFile`
`159`	`157`
`160`	`158`	`_, err = outFile.Seek(0, io.SeekStart)`
`161`	`159`	`if err != nil {`