Aaron Birkland <[EMAIL PROTECTED]> writes:
> In a nutshell, it looks like whenever COPY is invoked, and when a user
> defined type is used in an array, then stat64() will be called for
> each row accessed on the shared library relevant for the user defined
> type.
Let me guess ... PG 7.3 or older?
7.4 should avoid the problem because array_in() caches function lookup
information for the element type's input function across multiple calls.
In 8.0 there's also a cache at the fmgr_info() level to eliminate
repeated searches for a dynamically loaded function.
regards, tom lane
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