Using a CASE statements in a PIVOT role

[tznind]

This task is promoted from jira:

MySql only issue?

When you have a pivot column that contains select SQL that has quotes in it then this can mess with dynamic SQL needed to generate an axis/pivot graph e.g. the following select sql:


  CASE
    WHEN BodyPartExamined like '%SMI_REDACTED%' THEN 'BodyPartExamined'
    WHEN InstitutionName like '%SMI_REDACTED%' THEN 'InstitutionName'
    WHEN Modality like '%SMI_REDACTED%' THEN 'Modality'
    WHEN PerformedProcedureStepDescription like '%SMI_REDACTED%' THEN 'PerformedProcedureStepDescription'
    WHEN ProcedureCodeSequence_CodeValue like '%SMI_REDACTED%' THEN 'ProcedureCodeSequence_CodeValue'
    WHEN ProtocolName like '%SMI_REDACTED%' THEN 'ProtocolName'
    WHEN SeriesDescription like '%SMI_REDACTED%' THEN 'SeriesDescription'
    WHEN SeriesInstanceUID like '%SMI_REDACTED%' THEN 'SeriesInstanceUID'
    WHEN StudyInstanceUID like '%SMI_REDACTED%' THEN 'StudyInstanceUID'
    ELSE null
END

The workaround is to use double quotes when you express the SQL. 

[jas88]

Could this be related to #150, dodgy escaping via REPLACE not quite getting it right in some cases when the proper QUOTE function does?