[NIFI-1093] ConvertJSONToSQL incorrectly detects required columns

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: Extensions
• Assignee: Oleg Zhurakousky
• Reporter: Randy Gelhausen
• Created: 01/Nov/15 23:03
• Updated: 01/Feb/16 16:57
• Resolved: 01/Feb/16 16:57

Description

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?

Issue Links

• relates to: NIFI-1244 ConvertJSONToSQL does not allow a Schema to be configured