MySQL 8+ Catalog
I was working through some tutorials for my students and noticed that there was a change in how a WHERE clause must be written against the information_schema.table_constraints table. It might have been made in an earlier release, I actually hadn’t checked it since 2014 when I wrote this early post on capturing MySQL Foreign Keys.
You could use the following WHERE case insensitive clause:
WHERE tc.constraint_type = 'foreign key' |
Now, you must use a case sensitive WHERE clause:
WHERE tc.constraint_type = 'FOREIGN KEY' |
I’d love to know why but I can’t seem to find a note on the change. As always, I hope this helps those looking for an answer.
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