Hi, v 9.2.7
Based on LENGTH(offending_column), none of the values are more than 144 bytes in this 44.2M row table. Even though VARCHAR is, by definition, variable length, are there any internal design issues which would make things more efficient if it were dropped to, for example, VARCHAR(256)?
(I don't have access to the source code or to development boxes, so can't just test this on my own.)
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