Validate current clickhouse query

[alisman]

@uklineale @haynescd

Here's are a few examples from the public portal of clinical data which is declared type=numeric but has non-numerical values

You can obtain this list with a query like this. There is also clinical_sample table to look through. We need to figure out:

• What are the documented rules around these kind of values
• Does legacy code actually handle these properly?
• Is there any way to handle these performantly in Clickhouse since we're going to have to handle at least some of these cases

SELECT DISTINCT ATTR_VALUE FROM clinical_patient targ
                  JOIN clinical_attribute_meta cam on targ.ATTR_ID = cam.ATTR_ID
WHERE DATATYPE = 'number'
  AND NOT REGEXP_LIKE(ATTR_VALUE, '^-?[0-9.]+$')
UNION
SELECT DISTINCT ATTR_VALUE FROM clinical_sample targ
                                    JOIN clinical_attribute_meta cam on targ.ATTR_ID = cam.ATTR_ID
WHERE DATATYPE = 'number'
  AND NOT REGEXP_LIKE(ATTR_VALUE, '^-?[0-9.]+$')