From: Warren Young
Date: October 27 2008 11:13pm
Subject: Re: Patch for ssqls null blob deficiency
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Russell Robinson wrote:
> 	Failed to find MySQL C API type ID for N7mysqlpp6StringE

This should be taken care of by line 192 in lib/type_info.cpp.

(No, don't try to understand type_info.cpp.  Only 5th level wizards and 
up are expected to be able to read this without psychic damage.)

Can you modify an example to show the same error?

> To be honest, the thought of changing an example was 
> scary - I think that meant updating the documentation too...which seemed a 
> bit "over the top".

It's definitely situation-dependent.  If you just read the patch, it 
looks like I did a lot to the examples, but really, it's like 4 LOC 
changed to get the desired test.  The rest was just because I was in 
there, and to support dtest.

> Perhaps something about updating the doco if examples are added or changed - 
> when and when not to update doco.

Fair point.  It's done now.

> Your change doesn't do the critical part....which is to do:
> 
> 	query.insert(images);

Sure it does.  Line 114 in examples/load_jpeg.cpp.

You may have overlooked it because until just now, load_jpeg didn't use 
SSQLS to insert the image.  Now it does, to incorporate that aspect of 
your test/ssqls_nullblob.cpp.