[postgis-devel] [PostGIS] #837: [raster] ST_MapAlgebra -- I think we have a memory leak

[PostGIS]

#837: [raster] ST_MapAlgebra -- I think we have a memory leak
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 Reporter:  robe            |       Owner:  jorgearevalo 
     Type:  defect          |      Status:  assigned     
 Priority:  blocker         |   Milestone:  PostGIS 2.0.0
Component:  postgis raster  |     Version:  trunk        
 Keywords:                  |  
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Comment(by jorgearevalo):

 Just for the record. Differents behaviors of the function in PostgreSQL
 8.4.7 and PostgreSQL 9.0.3 when uncommenting the SPI_finish call:

 - PostgreSQL 8.4.7: Crash caused by SIGSEV, segmentation fault.[[BR]]
 - PostgreSQL 9.0.3: Error deserializing raster (Unknown pixeltype: 15).
 And incorrect number of bands reported (32639 instead of 1)

 Link to SQL file with the raster table used, 14400 rows:
 http://dl.dropbox.com/u/6599273/srtm_35_04.tgz

 Query that causes different behaviours when SPI_finish is uncommented:
 select st_mapalgebra(rast, 1, 'rast + 10', '-1 * rast') from srtm_35_04
 where rid < 3651

 The where clause is not necessary. The problem simply appears when the
 query processes more than 3650 rows.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/837#comment:11>
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