Well, behaviour of deterministic function is really strange. SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 AND y!=55 AND y NOT IN (56,57,58) AND y NOT LIKE 'abc%' AND y%10==2 order by x desc (Example from alias.test, I have declared sequence() with SQLITE_DETERMINISTIC flag) Trace for the query above: ... Function0 0 0 1 sequence(0) 00 r[1]=func(r[0]) Integer 0 2 0 00 r[2]=0 Integer 99 3 0 00 r[3]=99 Integer 55 4 0 00 r[4]=55 String8 0 13 0 abc% 00 r[13]='abc%' Function0 0 0 14 sequence(0) 00 r[14]=func(r[0]) Function0 3 13 8 like(2) 02 r[8]=func(r[13..14]) Function0 0 0 7 sequence(0) 00 r[7]=func(r[0]) ... sequence() is called 3 times in trace(even without branching), instead of using register r[1] after first call.
-- Sent from: http://sqlite.1065341.n5.nabble.com/ _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
