Avoid useless merge

5 files changed, 26 insertions, 13 deletions

diff --git a/Zend/zend_API.c b/Zend/zend_API.c
index 2bafa8586a..45e2331518 100644
--- a/Zend/zend_API.c
+++ b/Zend/zend_API.c
@@ -1097,7 +1097,7 @@ ZEND_API int _array_init(zval *arg, uint size ZEND_FILE_LINE_DC) /* {{{ */
 
 /* This function should be called after the constructor has been called
  * because it may call __set from the uninitialized object otherwise. */
-ZEND_API void zend_merge_properties(zval *obj, HashTable *properties, int destroy_ht TSRMLS_DC) /* {{{ */
+ZEND_API void zend_merge_properties(zval *obj, HashTable *properties TSRMLS_DC) /* {{{ */
 {
 	const zend_object_handlers *obj_ht = Z_OBJ_HT_P(obj);
 	zend_class_entry *old_scope = EG(scope);
@@ -1115,11 +1115,6 @@ ZEND_API void zend_merge_properties(zval *obj, HashTable *properties, int destro
 		}
 	} ZEND_HASH_FOREACH_END();
 	EG(scope) = old_scope;
-
-	if (destroy_ht) {
-		zend_hash_destroy(properties);
-		FREE_HASHTABLE(properties);
-	}
 }
 /* }}} */
 
diff --git a/Zend/zend_API.h b/Zend/zend_API.h
index 73152caa1c..0b96db84f1 100644
--- a/Zend/zend_API.h
+++ b/Zend/zend_API.h
@@ -370,7 +370,7 @@ ZEND_API void object_properties_init(zend_object *object, zend_class_entry *clas
 ZEND_API void object_properties_init_ex(zend_object *object, HashTable *properties TSRMLS_DC);
 ZEND_API void object_properties_load(zend_object *object, HashTable *properties TSRMLS_DC);
 
-ZEND_API void zend_merge_properties(zval *obj, HashTable *properties, int destroy_ht TSRMLS_DC);
+ZEND_API void zend_merge_properties(zval *obj, HashTable *properties TSRMLS_DC);
 
 /* no longer supported */
 ZEND_API int add_assoc_function(zval *arg, const char *key, void (*function_ptr)(INTERNAL_FUNCTION_PARAMETERS));
diff --git a/ext/mysql/php_mysql.c b/ext/mysql/php_mysql.c
index 580296a3cf..588eaf0539 100644
--- a/ext/mysql/php_mysql.c
+++ b/ext/mysql/php_mysql.c
@@ -2171,8 +2171,14 @@ static void php_mysql_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, long result_type,
 
 		ZVAL_COPY_VALUE(&dataset, return_value);
 		object_and_properties_init(return_value, ce, NULL);
-		zend_merge_properties(return_value, Z_ARRVAL(dataset), 0 TSRMLS_CC);
-		zval_dtor(&dataset);
+		if (!ce->default_properties_count && !ce->__set) {
+			ALLOC_HASHTABLE(Z_OBJ_P(return_value)->properties);
+			*Z_OBJ_P(return_value)->properties = *Z_ARRVAL(dataset);
+			efree(Z_ARR(dataset));
+		} else {
+			zend_merge_properties(return_value, Z_ARRVAL(dataset) TSRMLS_CC);
+			zval_dtor(&dataset);
+		}
 
 		if (ce->constructor) {
 			fci.size = sizeof(fci);
diff --git a/ext/mysqli/mysqli.c b/ext/mysqli/mysqli.c
index 7684e25765..0d4683102a 100644
--- a/ext/mysqli/mysqli.c
+++ b/ext/mysqli/mysqli.c
@@ -1287,8 +1287,14 @@ void php_mysqli_fetch_into_hash(INTERNAL_FUNCTION_PARAMETERS, int override_flags
 		ZVAL_COPY_VALUE(&dataset, return_value);
 
 		object_and_properties_init(return_value, ce, NULL);
-		zend_merge_properties(return_value, Z_ARRVAL(dataset), 0 TSRMLS_CC);
-		zval_ptr_dtor(&dataset);
+		if (!ce->default_properties_count && !ce->__set) {
+			ALLOC_HASHTABLE(Z_OBJ_P(return_value)->properties);
+			*Z_OBJ_P(return_value)->properties = *Z_ARRVAL(dataset);
+			efree(Z_ARR(dataset));
+		} else {
+			zend_merge_properties(return_value, Z_ARRVAL(dataset) TSRMLS_CC);
+			zval_ptr_dtor(&dataset);
+		}
 
 		if (ce->constructor) {
 			fci.size = sizeof(fci);
diff --git a/ext/pgsql/pgsql.c b/ext/pgsql/pgsql.c
index 3311196638..4381440e8d 100644
--- a/ext/pgsql/pgsql.c
+++ b/ext/pgsql/pgsql.c
@@ -2752,8 +2752,14 @@ static void php_pgsql_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, long result_type,
 
 		ZVAL_COPY_VALUE(&dataset, return_value);
 		object_and_properties_init(return_value, ce, NULL);
-		zend_merge_properties(return_value, Z_ARRVAL(dataset), 0 TSRMLS_CC);
-		zval_ptr_dtor(&dataset);
+		if (!ce->default_properties_count && !ce->__set) {
+			ALLOC_HASHTABLE(Z_OBJ_P(return_value)->properties);
+			*Z_OBJ_P(return_value)->properties = *Z_ARRVAL(dataset);
+			efree(Z_ARR(dataset));
+		} else {
+			zend_merge_properties(return_value, Z_ARRVAL(dataset) TSRMLS_CC);
+			zval_ptr_dtor(&dataset);
+		}
 
 		if (ce->constructor) {
 			fci.size = sizeof(fci);