Github user ijokarumawak commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1407#discussion_r99103639
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/AbstractDatabaseFetchProcessor.java
---
@@ -117,9 +124,11 @@
+ "can be used to retrieve only those rows that have
been added/updated since the last retrieval. Note that some "
+ "JDBC types such as bit/boolean are not conducive to
maintaining maximum value, so columns of these "
+ "types should not be listed in this property, and
will result in error(s) during processing. If no columns "
- + "are provided, all rows from the table will be
considered, which could have a performance impact.")
+ + "are provided, all rows from the table will be
considered, which could have a performance impact.\nNOTE: If Expression
Language is "
+ + "present for this property and it refers to flow
file attribute(s), then the Table Name property must also contain Expression
Language.")
--- End diff --
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