Matt Burgess created NIFI-6865:
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Summary: Add Fetch Size property to ExecuteSQL processors
Key: NIFI-6865
URL: https://issues.apache.org/jira/browse/NIFI-6865
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Matt Burgess
The ExecuteSQL and ExecuteSQLRecord processors do not have a way for the user
to set the fetch size for the JDBC query. Some drivers (like Oracle) default to
a [fetch size of
10|https://docs.oracle.com/cd/E18283_01/java.112/e16548/resltset.htm#i1023619],
which means result rows needs to be fetched ten at a time from the database.
This can be very slow, an improvement would be to allow the user to set the
fetch size for the query.
NOTE: Some drivers do not support this, either by throwing an exception or
ignoring it (the JDBC spec marks it as a "hint to the database", the doc for
the property should make this clear and no exception should be propagated
through the processor if the attempt to set fetch size is unsuccessful.
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