KB-1038 "Error evaluating function 'queryruleexec' : Unexpected error executing query" thrown when evaluating query rule

Symptoms

When running a query rule, users can see a vague error similar to the following:

Expression evaluation error in rule '<rule name>' at function 'queryruleexec': Error evaluating function 'queryruleexec' : Unexpected error executing query (type: [<CDT name>], query: [<rule name>], order by: [[]], filters:[null])

The error seen above in Appian generates the following error in the application server log:

ERROR org.hibernate.util.JDBCExceptionReporter - Value '0000-00-00' can not be represented as java.sql.Date

or

Caused by: com.appiancorp.suiteapi.common.exceptions.AppianRuntimeException: com.appiancorp.suiteapi.common.exceptions.AppianException: Unexpected error executing query
...
Caused by: org.hibernate.exception.GenericJDBCException: could not execute query
...
Caused by: java.sql.SQLException: Value '0000-00-00' can not be represented as java.sql.Timestamp

If querying a 'Date and Time' field, the following error may be seen instead: 

ERROR org.hibernate.util.JDBCExceptionReporter - Value '0000-00-00 00:00:00' can not be represented as java.sql.Timestamp

Cause

In the database table that this query rule was querying, there was a date column that had the value 0000-00-00 in one of its rows. Such a date is outside the possible range of values for date types, and could not be displayed.

Action

Either delete the invalid data in the table’s row, or modify it so that it is readable by Appian.

Affected Versions

This article applies to all versions of Appian.