Github user blrunner commented on a diff in the pull request:
https://github.com/apache/tajo/pull/476#discussion_r27446574
--- Diff:
tajo-storage/tajo-storage-common/src/main/java/org/apache/tajo/storage/StorageManager.java
---
@@ -538,7 +538,8 @@ public Appender getAppender(OverridableConf
queryContext,
if (scannerClass == null) {
scannerClass = conf.getClass(
String.format("tajo.storage.scanner-handler.%s.class",
handlerName), null, Scanner.class);
- SCANNER_HANDLER_CACHE.put(handlerName, scannerClass);
+ if (scannerClass != null)
--- End diff --
Hi @dongjoon-hyun
Thank you for your detailed comments.
I just leaved the comment because I couldn't create new table without
reference to the IF statement as following:
```
default> create table test1 (id int) using orc;
ERROR: Store format orc is not supported.
```
Anyway, I can't reproduce the NPE now because of above situation. I think
that it may be related to other source codes. If possible, could you check it
again?
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