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https://issues.apache.org/jira/browse/NIFI-4561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16448127#comment-16448127
]
ASF GitHub Bot commented on NIFI-4561:
--------------------------------------
Github user patricker commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2243#discussion_r183389726
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ExecuteSQL.java
---
@@ -220,17 +224,19 @@ public void onTrigger(final ProcessContext context,
final ProcessSession session
JdbcCommon.setParameters(st,
fileToProcess.getAttributes());
}
logger.debug("Executing query {}", new Object[]{selectQuery});
- boolean results = st.execute();
+ boolean hasResults = st.execute();
+ boolean hasUpdateCount = st.getUpdateCount() != -1;
-
- while(results){
- FlowFile resultSetFF;
- if(fileToProcess == null){
- resultSetFF = session.create();
- } else {
- resultSetFF = session.create(fileToProcess);
- resultSetFF = session.putAllAttributes(resultSetFF,
fileToProcess.getAttributes());
- }
+ while(hasResults || hasUpdateCount) {
+ //getMoreResults() and execute() return false to indicate
that the result of the statement is just a number and not a ResultSet
+ if (hasResults) {
+ FlowFile resultSetFF;
+ if (fileToProcess == null) {
+ resultSetFF = session.create();
+ } else {
+ resultSetFF = session.create(fileToProcess);
+ resultSetFF =
session.putAllAttributes(resultSetFF, fileToProcess.getAttributes());
+ }
final AtomicLong nrOfRows = new AtomicLong(0L);
--- End diff --
Thanks, I'll fix it.
> ExecuteSQL Stopped Returning FlowFile for non-ResultSet Queries
> ---------------------------------------------------------------
>
> Key: NIFI-4561
> URL: https://issues.apache.org/jira/browse/NIFI-4561
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Peter Wicks
> Assignee: Peter Wicks
> Priority: Major
>
> While most people use ExecuteSQL for Select statements, some JDBC drivers
> allow you to execute any kind of statement, including multi-statement
> requests.
> This allowed users to submit multiple SQL statements in one JDBC Statement
> and get back multiple result sets. This was part of the reason I wrote
> [NIFI-3432].
> After having NIFI-3432 merged, I found that some request types no longer
> cause a FlowFile to be generated because there is no ResultSet. Also, if
> request types are mixed, such as an insert followed by a Select, then no
> ResultSet is returned because the first result is not a result set but an
> Update Count.
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