[postgis-devel] [PostGIS] #851: [raster] Numerous ST_Value query cause the memory to grow indefinitely

[Sandro Santilli]

On Thu, Apr 21, 2011 at 07:49:57PM -0000, PostGIS wrote:

>  Conclusion: rt_context_destroy() is still very useful...

This is because currently rt_context is allocated in upper memory context
but not reused (the static variable always re-assigned).

Dropping the MemoryContextSwitch should reclaim it at end of function.
Properly using the static should allocate one for the whole backend lifetime.

--strk; 

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