| Hi *, I have a question according to a customly built index. I want to force the query planner to search in my index structure, whenever I have a query that uses my specified operator. Until now, I always have to insert a quite amount of tuples (~ 20000-30000) for being able to get an index scan instead of a sequential scan. What I tried here is to set in my costestimate function: *indexStartupCost = 1; *indexTotalCost = 1; *indexSelectivity = 1; *indexCorrelation = 1; However, this does not work, apparently. I still have to put a quite amount of tuples to the table and build my index on top of this. My costestimate function is called properly and returns these values. What do I have to adjust in order to force the query planner to use my index structure (which would be much easier for me to test) and not having to insert a real big amount of data items? Best regards Carsten Kropf |
