WORK IN PROGRESS: Add failing test: column elements have inconsistent types #2846
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When using COALESCE it's very easy to get a column in the query-result whose elements have inconsistent types. This is outside the expected behaviour of a MySQL implementation, as MySQL will make sure that all elements in a column of results share the same type.
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When using COALESCE it's very easy to get a column in the query-result whose elements have inconsistent types. This is outside the expected behaviour of a MySQL implementation, as MySQL will make sure that all elements in a column of results share the same type.