Unqualified reference 'ordinal_position' found in select with more than one referenced table/view
45ORDER BY non_unique,
46 TYPE,
47 index_name,
48 ordinal_position
Description
References should be qualified if SELECT has more than one referenced table/view.
NB: Except if they’re present in a USING clause.
Bad practice
In this example, the reference ‘vee’ has not been declared and the variables ‘a’ and ‘b’ are potentially ambiguous.
SELECT a, b
FROM foo
LEFT JOIN vee ON vee.a = foo.a
Recommended
Add the references.
SELECT foo.a, vee.b
FROM foo
LEFT JOIN vee ON vee.a = foo.a