Function AST_BuildReturnColumnNames

src/ast/ast.c:584–604

}

const char **AST_BuildReturnColumnNames
(
	const cypher_astnode_t *return_clause
) {
	// all RETURN * clauses should have been converted to explicit lists
	ASSERT(cypher_ast_return_has_include_existing(return_clause) == false);

	// Collect every alias from the RETURN projections.
	uint projection_count = cypher_ast_return_nprojections(return_clause);
	const char **columns = array_new(const char *, projection_count);
	for(uint i = 0; i < projection_count; i++) {
		const cypher_astnode_t *projection = cypher_ast_return_get_projection(return_clause, i);
		const cypher_astnode_t *ast_alias = cypher_ast_projection_get_alias(projection);
		// If the projection was not aliased, the projection itself is an identifier.
		if(ast_alias == NULL) ast_alias = cypher_ast_projection_get_expression(projection);
		const char *alias = cypher_ast_identifier_get_name(ast_alias);
		array_append(columns, alias);
	}

	return columns;
}

const char **AST_BuildCallColumnNames
(