> Usually I'd allocate the space in fcinfo->flinfo->fn_mcxt (which is a > query-lifespan context) and keep a pointer to it in > fcinfo->flinfo->fn_extra (which is a void * field that a C function > can do what it pleases with). There are plenty of examples in the > Postgres source code. If you are looking to cache data longer than > one query then it takes more thought. > > regards, tom lane
Thanks Tom. I'll have a look into this when I have more time.
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