Github user bbende commented on a diff in the pull request:
https://github.com/apache/nifi/pull/384#discussion_r61832456
--- Diff:
nifi-nar-bundles/nifi-hive-bundle/nifi-hive-processors/src/main/java/org/apache/nifi/processors/hive/SelectHiveQL.java
---
@@ -52,15 +54,27 @@
@EventDriven
@InputRequirement(Requirement.INPUT_ALLOWED)
@Tags({"hive", "sql", "select", "jdbc", "query", "database"})
-@CapabilityDescription("Execute provided HiveQL SELECT query against a
Hive database connection. Query result will be converted to Avro format."
+@CapabilityDescription("Execute provided HiveQL SELECT query against a
Hive database connection. Query result will be converted to Avro or CSV format."
+ " Streaming is used so arbitrarily large result sets are
supported. This processor can be scheduled to run on "
+ "a timer, or cron expression, using the standard scheduling
methods, or it can be triggered by an incoming FlowFile. "
+ "If it is triggered by an incoming FlowFile, then attributes of
that FlowFile will be available when evaluating the "
+ "select query. FlowFile attribute 'executehiveql.row.count'
indicates how many rows were selected.")
-public class ExecuteHiveQL extends AbstractHiveQLProcessor {
+@WritesAttributes({
+ @WritesAttribute(attribute = "mime.type", description = "Sets the
MIME type for the outgoing flowfile to application/avro-binary for Avro or
text/csv for CSV."),
+ @WritesAttribute(attribute = "filename", description = "Adds .avro
or .csv to the filename attribute depending on which output format is
selected."),
+ @WritesAttribute(attribute = "executehiveql.row.count",
description = "Indicates how many rows were selected/returned by the query.")
+})
+public class SelectHiveQL extends AbstractHiveQLProcessor {
public static final String RESULT_ROW_COUNT =
"executehiveql.row.count";
--- End diff --
same as above
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
