Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/701#discussion_r99650129
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/DrillSqlWorker.java
---
@@ -50,13 +47,56 @@
private DrillSqlWorker() {
}
+ /**
+ * Converts sql query string into query physical plan.
+ *
+ * @param context query context
+ * @param sql sql query
+ * @return query physical plan
+ */
public static PhysicalPlan getPlan(QueryContext context, String sql)
throws SqlParseException, ValidationException,
ForemanSetupException {
return getPlan(context, sql, null);
}
+ /**
+ * Converts sql query string into query physical plan.
+ * In case of any errors (that might occur due to missing function
implementation),
+ * checks if local function registry should be synchronized with remote
function registry.
+ * If sync took place, reloads drill operator table
+ * (since functions were added to / removed from local function registry)
+ * and attempts to converts sql query string into query physical plan
one more time.
+ *
+ * @param context query context
+ * @param sql sql query
+ * @param textPlan text plan
+ * @return query physical plan
+ */
--- End diff --
Thanks for adding the Javadoc!
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