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https://issues.apache.org/jira/browse/NIFI-1093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15111265#comment-15111265
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Matt Burgess commented on NIFI-1093:
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I tend towards a consistent user experience in the processor, meaning that if
the "Unmatched Column Behavior" property is the "left-side version" of the
"Unmatched Field Behavior" property, then if there is no other preference or
needed feature, they should have similar choices. Having said that, if users
decide they want more control (specific columns, e.g.), that can be a future
improvement.
Looking forward to the patch, thanks much!
> ConvertJSONToSQL incorrectly detects required columns
> -----------------------------------------------------
>
> Key: NIFI-1093
> URL: https://issues.apache.org/jira/browse/NIFI-1093
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Randy Gelhausen
> Fix For: 0.5.0
>
>
> create table device_pings(id varchar not null, ts varchar not null, bssid
> varchar, ssid varchar, noise integer, signal integer, constraint pk primary
> key (id, ts))
> With the example DDL above, neither SSID nor BSSID are required fields, yet
> ConvertJSONToSQL throws an exception if the input JSON lacks those fields:
> 2015-11-01 17:47:10,373 ERROR [Timer-Driven Process Thread-6]
> o.a.n.p.standard.ConvertJSONToSQL
> ConvertJSONToSQL[id=a336eb2b-fc63-4118-b098-c0ded1dd5520] Failed to convert
> StandardFlowFileRecord[uuid=5d2c05f0-982e-4feb-94b1-d9946be730d4,claim=StandardContentClaim
> [resourceClaim=StandardResourceClaim[id=1446416358991-2, container=default,
> section=2], offset=203306,
> length=614],offset=0,name=1446418019645796000,size=614] to a SQL INSERT
> statement due to org.apache.nifi.processor.exception.ProcessException: JSON
> does not have a value for the Required column 'BSSID'; routing to failure:
> org.apache.nifi.processor.exception.ProcessException: JSON does not have a
> value for the Required column 'BSSID'
> 2015-11-01 17:47:10,381 ERROR [Timer-Driven Process Thread-6]
> o.a.n.p.standard.ConvertJSONToSQL
> ConvertJSONToSQL[id=a336eb2b-fc63-4118-b098-c0ded1dd5520] Failed to convert
> StandardFlowFileRecord[uuid=727b8c3c-66c5-4d6a-8cdc-602da8b80132,claim=StandardContentClaim
> [resourceClaim=StandardResourceClaim[id=1446416358991-2, container=default,
> section=2], offset=203920,
> length=674],offset=0,name=1446418019645796000,size=674] to a SQL INSERT
> statement due to org.apache.nifi.processor.exception.ProcessException: JSON
> does not have a value for the Required column 'SSID'; routing to failure:
> org.apache.nifi.processor.exception.ProcessException: JSON does not have a
> value for the Required column 'SSID'
> The processor has "Unmatched Field Behavior" property. Should there be an
> additional property "Unmatched Column Behavior" property that allows SQL
> statements to be generated from the set of columns actually available in the
> JSON?
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