For the group, the eventual culprit was not complicated. It is a model
with a BinaryField that holds a file's contents. The Django documentation
advises against this, but why? Well, on-premise with big-iron database
like Oracle, storing the file in the database is attractive. So, what's
the problem?
ModelWithFileContents.objects.all()
There you go, even if you are not using the file, its contents will be
fetched into memory.
The solution if it must be at the Django level is to use defer() properly,
and add it to the ModelManager.
What I did is to make sure the developer *always* used a database view that
doesn't have the binary field for most operations.
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