Access Rule Violation error when CMDB extending table column name conflicts with the display field column name of a table that is referenced by the extending tableDescription The error shown below appears when a column name in a table extending CMDB conflicts with the column name of the display field of a table that is referenced by the extending CMDB table:Syntax Error or Access Rule Violation detected by database (Unknown column 'test_storage_alias1.schedule' in 'where clause') Steps to Reproduce 1. Create a table with one column having name "display_col" of type "String" and display set to "true".2. Create another table that extends "cmdb".3. Add column "display_col" of type Reference in the table created in step 2 and referencing the table created in step 1.4. Open the list for table extending cmdb created in step 2.5. Apply a contains filter on "display_col". Observe the filtered data is displayed, but the count query throws the exception: Syntax Error or Access Rule Violation detected by database (Unknown column 'test_storage_alias1.schedule' in 'where clause') Workaround After carefully considering the severity and frequency of the issue, and the cost and risk of attempting a fix, it has been decided to not address this issue in any current or near future releases. We do not make these decisions lightly, and we apologize for any inconvenience. Please apply one of the following workarounds: 1) Set the system property 'glide.db.optimize.root_table.cmdb' (create it on the instance if not present) to 'false'. This property is used when composing SQL JOIN queries. Setting it to 'false' disables certain failing optimizations when joining against the 'cmdb' table specifically. OR 2) Create a new column in the referenced table and name it differently, copy the data from the old column to the new one, and mark the new column as the 'Display' field. However, related Business Rules, etc may have to be modified to use the new column instead of the old column. The old column will also have to be marked as inactive or to be deleted. OR 3) Select another column in the referenced table to be the displayed column. Related Problem: PRB1235111