1 --[[--

2 trace.sql{

3 command = command, -- executed SQL command as string

4 execution_time = execution_time, -- execution time of the statement in seconds

5 error_position = error_position -- optional position in bytes where an error occurred

6 }

7

8 This command can be used to log SQL command execution. It is currently not invoked automatically.

9

10 --]]--

11

12 -- TODO: automatic use of this function?

13

14 function trace.sql(args)

15 if not trace._disabled then

16 local command = args.command

17 local execution_time = args.execution_time

18 local error_position = args.error_position

19 if type(command) ~= "string" then

20 error("No command string passed to trace.sql{...}.")

21 end

22 if type(execution_time) ~= "number" then

23 error("No execution time number passed to trace.sql{...}.")

24 end

25 if error_position and type(error_position) ~= "number" then

26 error("error_position must be a number.")

27 end

28 trace._new_entry{

29 type = "sql",

30 command = command,

31 execution_time = execution_time,

32 error_position = error_position

33 }

34 for i, entry in ipairs(trace._stack) do

35 entry.db_time = entry.db_time + execution_time

36 end

37 end

38 end