Warn on table/column identifier case issues #88
Merged
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For queries such as
SELECT * FROM assets WHERE userId = bucket.userId
, both instances ofuserId
are converted to a lower-caseuserid
. This is standard behavior in Postgres SQL, and common in other SQL variations as well. However, it is often unexpected for developers, causing difficult-to-debug issues.This adds a warning when an unquoted identifier is used that is not all lower-case. We don't get enough info to properly split schema name, table name and table alias, so the check does nothing for now if a schema name or table alias is encountered.
The check is especially relevant when schema information is not available for validations.