Github user JamesRTaylor commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/281#discussion_r151014001
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/execute/BaseQueryPlan.java ---
@@ -500,7 +500,10 @@ public ExplainPlan getExplainPlan() throws
SQLException {
if (context.getScanRanges() == ScanRanges.NOTHING) {
return new ExplainPlan(Collections.singletonList("DEGENERATE
SCAN OVER " + getTableRef().getTable().getName().getString()));
}
-
+
+ // Initialize dummy iterator to get the stats.
--- End diff --
Comment that you need the stats prior to optimization as they help drive
cost based decisions.
---
