commit 1aab564b7806d0833f81d35b45cef3717becc6fb
author murali4104 <murali.krishna@couchbase.com> Tue Jan 16 20:21:47 2024 -0800
committer Michael Blow <mblow@apache.org> Fri Jan 19 21:44:44 2024 +0000
tree 5459d81fa9c03b618218673802db05b6e0bcd8cb
parent a05d823c57cc4be78847b5be83534f9ae7664457

[NO ISSUE][*DB][CBO] Fixing problem with or predicate

Avoid ClassCastException when the first argument of an 'OR' is not a
function.

(cherry picked from commit 335ca4d2)

Change-Id: I15b3709de3af9d42349aac81b52e6c48e364d688
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/18106
Reviewed-by: Michael Blow <mblow@apache.org>
Reviewed-by: Murtadha Hubail <mhubail@apache.org>
Tested-by: Michael Blow <mblow@apache.org>

asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/Stats.java

diff --git a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/Stats.java b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/Stats.java
index b3c4876..38d817b 100644
--- a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/Stats.java
+++ b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/Stats.java
@@ -135,9 +135,8 @@
         double sel = 1.0;
 
         if (afcExpr.getFunctionIdentifier().equals(AlgebricksBuiltinFunctions.OR)) {
-            double orSel = getSelectivityFromAnnotation(
-                    (AbstractFunctionCallExpression) afcExpr.getArguments().get(0).getValue(), join);
-            for (int i = 1; i < afcExpr.getArguments().size(); i++) {
+            double orSel = 0.0;
+            for (int i = 0; i < afcExpr.getArguments().size(); i++) {
                 ILogicalExpression lexpr = afcExpr.getArguments().get(i).getValue();
                 if (lexpr.getExpressionTag().equals(LogicalExpressionTag.FUNCTION_CALL)) {
                     sel = getSelectivityFromAnnotation(