vvysotskyi commented on a change in pull request #2184:
URL: https://github.com/apache/drill/pull/2184#discussion_r585908797



##########
File path: 
contrib/format-esri/src/main/java/org/apache/drill/exec/store/esri/ShpBatchReader.java
##########
@@ -125,7 +125,7 @@ public boolean next() {
 
   private void openFile(FileSchemaNegotiator negotiator) {
     try {
-      fileReaderShp = negotiator.fileSystem().open(split.getPath());
+      fileReaderShp = 
negotiator.fileSystem().openDecompressedInputStream(split.getPath());

Review comment:
       Both methods `openPossiblyCompressedStream()` and 
`openDecompressedInputStream()` have similar logic in determining compression 
codec (based on specified path) and producing decompression. The difference is 
only that the last one places whole the stream to the buffer and wraps it to 
the `ByteArrayInputStream`. So looks like if `openDecompressedInputStream()` 
will not help, the `openPossiblyCompressedStream()` also wouldn't work.
   
   If for some reason files from s3 are read as compressed, and there is no way 
for obtaining info for the compression method when reading the file, we can add 
a property to the file storage plugin `config` block that will hold the default 
compression type if any.




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