pointer to the parent #GdaSqlAnyPart structure
type of structure, as a #GdaSqlAnyPartType enum.
Checks for any error in node's structure to make sure it is valid. This
is the same as gda_sql_statement_check_structure() but for individual #GdaSqlAnyPart
parts. This function is mainly for database provider's implementations
Calls a function for each element of a #GdaSqlAnyPart node
function to call for each sub node
Base structure of which all structures (except #GdaSqlStatement) "inherit". It identifies, for each structure, its type and its parent in the structure hierarchy.