Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/719#discussion_r38721432
--- Diff:
tajo-core/src/main/java/org/apache/tajo/master/exec/QueryExecutor.java ---
@@ -260,6 +260,7 @@ public void execSimpleQuery(QueryContext queryContext,
Session session, String q
if (plan.getRootBlock().hasNode(NodeType.LIMIT)) {
LimitNode limitNode = plan.getRootBlock().getNode(NodeType.LIMIT);
maxRow = (int) limitNode.getFetchFirstNum();
+ scanNode.setLimit(maxRow);
--- End diff --
The main purpose of setLimit is a hint described in the comment. It does
not guarantee the number of retrieved rows. So, we must use both.
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