Github user adeneche commented on a diff in the pull request:
https://github.com/apache/drill/pull/222#discussion_r43658789
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/window/DefaultFrameTemplate.java
---
@@ -287,6 +318,36 @@ private int countPeers(final int start) {
}
/**
+ * Counts how many rows are peer with the first row of the current
frame. This is called when we don't require all
+ * batches of current partition to be processed at once.<br>
+ * Assumes the end of the frame has indeed been found, because of this
it doesn't use partition.remaining to check
+ * the end of current partition but rather isSamePartition()
+ * @param start first row of current frame
+ * @return number of peer rows
+ */
+ private int countPeersPartialPartition(final int start) {
--- End diff --
will fix
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