vvysotskyi commented on a change in pull request #1488: DRILL-786: Implement
CROSS JOIN
URL: https://github.com/apache/drill/pull/1488#discussion_r222646339
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/JoinUtils.java
##########
@@ -65,6 +69,15 @@
}
private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(JoinUtils.class);
+ public static final String FAILED_TO_PLAN_CARTESIAN_JOIN = String.format(
+ "This query cannot be planned possibly due to either a cartesian join or
an inequality join. " +
+ "If cartesian or inequality join is used intentionally, set option
'%s' to false and try again.",
+ NLJOIN_FOR_SCALAR.getOptionName());
+
+ public static UnsupportedRelOperatorException
cartesianJoinPlanningException() {
Review comment:
Please add Javadoc
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