Hello all, I'm not sure how to manage the lifetime of ancillary data for a user-defined function added by sqlite3_create_function ().
Consider a median() function. The data are captured on each xStep, then sorted and the median produced in xFinal. Suppose sqlite3_realloc() fails during one xStep. The computation will be invalidated. Will xStep be called again after it raises an error? Will xFinal be called? If I know xFinal will be called, ISTM I should raise an error there, too. That would also make xFinal a convenient place to reinitalize the data structures. Suppose xStep doesn't fail, but another query is executing simultaneously, also using the median() UDF. I need one data structure per context. I don't see support for that in the SQLite API. Am I expected to maintain my own global associative array? Many thanks for you guidance. --jkl _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
