Function _QueryGraphSetNodeLabel

src/graph/query_graph.c:15–34

sets node label and label ID

// sets node label and label ID
static void _QueryGraphSetNodeLabel
(
	QGNode *n,
	const cypher_astnode_t *ast_entity
) {
	GraphContext *gc = QueryCtx_GetGraphCtx();

	// retrieve node labels from the AST entity
	uint nlabels = cypher_ast_node_pattern_nlabels(ast_entity);

	for(uint i = 0; i < nlabels; i++) {
		const char *l = cypher_ast_label_get_name(
							cypher_ast_node_pattern_get_label(ast_entity, i));

		// if a schema is found, the AST refers to an existing label
		Schema *s = GraphContext_GetSchema(gc, l, SCHEMA_NODE);
		int l_id = (s) ? Schema_GetID(s) : GRAPH_UNKNOWN_LABEL;
		QGNode_AddLabel(n, l, l_id);
	}
}

// adds node to query graph
static void _QueryGraphAddNode