`_raw` returns IDs instead of column names about crate HOT 4 CLOSED

I cannot recall the reasoning but that is intentional. We have a test that validates _raw returning oids instead of column names, see

Also I think this would not be considered a regression since _raw is undocumented, https://cratedb.com/docs/crate/reference/en/5.6/general/ddl/system-columns.html

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Yes, I figured it might have been an intentional side-effect when switching to OIDs during the development of DROP COLUMN. In some situations, _raw was very handy as a simple way to get a JSON representation of a complete row. It's not directly breaking a significant use case for me, but thought I'd give it a try reporting to see if there is a chance to get it back.

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I see, it looks like we are expected to use _doc::string to replace the old _raw, #14726 (comment).

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This is intentional and the format of _raw is in general considered an implementation detail. With #15548 it might even change further.

from crate.