Github user gparai commented on a diff in the pull request:
https://github.com/apache/drill/pull/702#discussion_r95719700
--- Diff:
contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoGroupScan.java
---
@@ -503,7 +505,9 @@ public ScanStats getScanStats() {
long numDocs = collection.count();
float approxDiskCost = 0;
if (numDocs != 0) {
- String json = collection.find().first().toJson();
+ final DocumentCodec codec =
--- End diff --
Please add a comment to describe the need for the codec along with the
example from the bug.
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