Postgresql 中文操作指南
37.40. routine_column_usage #
routine_column_usage 视图标识由函数或过程使用的所有列,无论是在 SQL 正文中还是在参数默认表达式中。(这仅适用于未引用的 SQL 正文,而不适用于引用的正文或其他语言中的函数。)仅当列属于当前已启用角色时才包含列。
The view routine_column_usage identifies all columns that are used by a 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.) A column is only included if its table is owned by a currently enabled role.
Table 37.38. routine_column_usage Columns
Table 37.38. routine_column_usage Columns
Column Type Description |
specific_catalog sql_identifier Name of the database containing the function (always the current database) |
specific_schema sql_identifier Name of the schema containing the function |
specific_name sql_identifier The “specific name” of the function. See Section 37.45 for more information. |
routine_catalog sql_identifier Name of the database containing the function (always the current database) |
routine_schema sql_identifier Name of the schema containing the function |
routine_name sql_identifier Name of the function (might be duplicated in case of overloading) |
table_catalog sql_identifier Name of the database that contains the table that is used by the function (always the current database) |
table_schema sql_identifier Name of the schema that contains the table that is used by the function |
table_name sql_identifier Name of the table that is used by the function |
column_name sql_identifier Name of the column that is used by the function |