On Fri, Nov 1, 2013 at 3:51 PM, Richard Hipp <d...@sqlite.org> wrote:

>  I don't think anybody knows.  The EXPLAIN QUERY PLAN syntax is not
> formally
> designed.  It is intended for human reading, not machine parsing.  It
> changes from time to time and is not considered part of the SQLite
> interface.
>
If you want to know all possibilities of what the current code can generate
> for EXPLAIN QUERY PLAN, you'll need to look at the source code and figure
> that out for yourself.  All of the EXPLAIN QUERY PLAN generating code is
> found in the "where.c" source file.  If it were me, I'd probably start
> looking here:  http://www.sqlite.org/src/artifact/f18400f121fd?ln=3049
>

Thank you.

I was afraid that my post might be taken as a request for someone else to
do my homework. I already tried what you suggest but
I don't know C -I am using sqlite3.dll from Delphi - and it was hard for me
to find my way in unfamiliar code in a language I do not understand, but
since you have localized it for me I'll try to read the code and
find the answer myself.
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