routine_routine_usage
The view routine_routine_usage identifies all functions
or procedures that are used by another (or the same) function or procedure,
either in the SQL body or in parameter default expressions. (This only
works for unquoted SQL bodies, not quoted bodies or functions in other
languages.) An entry is included here only if the used function is owned
by a currently enabled role. (There is no such restriction on the using
function.)
Note that the entries for both functions in the view refer to the “specific” name of the routine, even though the column names are used in a way that is inconsistent with other information schema views about routines. This is per SQL standard, although it is arguably a misdesign. See Section 39.45 for more information about specific names.
Table 39.40. routine_routine_usage Columns
Column Type Description |
|---|
Name of the database containing the using function (always the current database) |
Name of the schema containing the using function |
The “specific name” of the using function. |
Name of the database that contains the function that is used by the first function (always the current database) |
Name of the schema that contains the function that is used by the first function |
The “specific name” of the function that is used by the first function. |