MySQL :: MySQL 8.0 Reference Manual :: 7.5.4 Query Attribute Components (original) (raw)

7.5.4 Query Attribute Components

As of MySQL 8.0.23, a component service provides access to query attributes (see Section 11.6, “Query Attributes”). Thequery_attributes component uses this service to provide access to query attributes within SQL statements.

• Purpose: Implements themysql_query_attribute_string() function that takes an attribute name argument and returns the attribute value as a string, or NULL if the attribute does not exist.
• URN: file://component_query_attributes

Developers who wish to incorporate the same query-attribute component service used by query_attributes should consult the mysql_query_attributes.h file in a MySQL source distribution.