On 12/21/2016 04:14 AM, Jim Nasby wrote:
Why do functions that accept composite types delay type resolution until
execution? I have a naive patch that speeds up plpy.execute() by 8% by
caching interred python strings for the dictionary key names (which are
repeated over and over). The next step is to just pre-allocate those
strings as appropriate for the calling context, but it's not clear how
to handle that for input arguments.

Does your patch handle "ALTER TYPE name ADD ATTRIBUTE ..."? My immediate guess would be that it could be a cache invalidation thing.


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