Zdenek Kotala wrote:
> I'm now looking into toast code and I found following code in  
> pglz_decompress:
>
> 00704     if (destsize != source->rawsize)
> 00705         elog(destsize > source->rawsize ? FATAL : ERROR,
> 00706              "compressed data is corrupt");
>
>
> I'm surprise why we there panic?

Agreed, FATAL is too strong.

> My idea is to improve this piece of code and move error logging to  
> callers (heap_tuple_untoast_attr() and heap_tuple_untoast_attr_slice())  
> where we have a little bit more details (especially for external 
> storage).

Why move it?  Just adding errcontext in the callers should be enough.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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