MySQLnd: Remove unused fetch_field_data method

This method is not used, and is implemented in a very dubious
way.

Author: nikic

ext/mysqlnd/mysqlnd.h

@@ -101,7 +101,6 @@ PHPAPI void mysqlnd_debug(const char *mode);
 #define mysqlnd_fetch_into(result, flags, ret_val, ext)	(result)->m.fetch_into((result), (flags), (ret_val), (ext) ZEND_FILE_LINE_CC)
 #define mysqlnd_fetch_row_c(result)						(result)->m.fetch_row_c((result))
 #define mysqlnd_fetch_all(result, flags, return_value)	(result)->m.fetch_all((result), (flags), (return_value) ZEND_FILE_LINE_CC)
-#define mysqlnd_result_fetch_field_data(res,offset,ret)	(res)->m.fetch_field_data((res), (offset), (ret))
 #define mysqlnd_get_connection_stats(conn, values)		((conn)->data)->m->get_statistics((conn)->data,  (values) ZEND_FILE_LINE_CC)
 #define mysqlnd_get_client_stats(values)				_mysqlnd_get_client_stats(mysqlnd_global_stats, (values) ZEND_FILE_LINE_CC)
 

ext/mysqlnd/mysqlnd_result.c

@@ -1791,50 +1791,13 @@ MYSQLND_METHOD(mysqlnd_res, fetch_all)(MYSQLND_RES * result, const unsigned int
 /* }}} */
 
 
-/* {{{ mysqlnd_res::fetch_field_data */
-static void
-MYSQLND_METHOD(mysqlnd_res, fetch_field_data)(MYSQLND_RES * result, const unsigned int offset, zval *return_value)
-{
-	zval row;
-	zval *entry;
-	unsigned int i = 0;
-
-	DBG_ENTER("mysqlnd_res::fetch_field_data");
-	DBG_INF_FMT("offset=%u", offset);
-	/*
-	  Hint Zend how many elements we will have in the hash. Thus it won't
-	  extend and rehash the hash constantly.
-	*/
-	mysqlnd_fetch_into(result, MYSQLND_FETCH_NUM, &row, MYSQLND_MYSQL);
-	if (Z_TYPE(row) != IS_ARRAY) {
-		zval_ptr_dtor_nogc(&row);
-		RETVAL_NULL();
-		DBG_VOID_RETURN;
-	}
-
-	zend_hash_internal_pointer_reset(Z_ARRVAL(row));
-	while (i++ < offset) {
-		zend_hash_move_forward(Z_ARRVAL(row));
-	}
-
-	entry = zend_hash_get_current_data(Z_ARRVAL(row));
-
-	ZVAL_COPY(return_value, entry);
-	zval_ptr_dtor_nogc(&row);
-
-	DBG_VOID_RETURN;
-}
-/* }}} */
-
-
 MYSQLND_CLASS_METHODS_START(mysqlnd_res)
 	MYSQLND_METHOD(mysqlnd_res, fetch_row),
 	MYSQLND_METHOD(mysqlnd_res, use_result),
 	MYSQLND_METHOD(mysqlnd_res, store_result),
 	MYSQLND_METHOD(mysqlnd_res, fetch_into),
 	MYSQLND_METHOD(mysqlnd_res, fetch_row_c),
 	MYSQLND_METHOD(mysqlnd_res, fetch_all),
-	MYSQLND_METHOD(mysqlnd_res, fetch_field_data),
 	MYSQLND_METHOD(mysqlnd_res, num_rows),
 	MYSQLND_METHOD(mysqlnd_res, num_fields),
 	MYSQLND_METHOD(mysqlnd_res, skip_result),

ext/mysqlnd/mysqlnd_structs.h

@@ -644,7 +644,6 @@ typedef MYSQLND_RES *		(*func_mysqlnd_res__store_result)(MYSQLND_RES * result, M
 typedef void 				(*func_mysqlnd_res__fetch_into)(MYSQLND_RES *result, const unsigned int flags, zval *return_value, enum_mysqlnd_extension ext ZEND_FILE_LINE_DC);
 typedef MYSQLND_ROW_C 		(*func_mysqlnd_res__fetch_row_c)(MYSQLND_RES *result);
 typedef void 				(*func_mysqlnd_res__fetch_all)(MYSQLND_RES *result, const unsigned int flags, zval *return_value ZEND_FILE_LINE_DC);
-typedef void 				(*func_mysqlnd_res__fetch_field_data)(MYSQLND_RES *result, const unsigned int offset, zval *return_value);
 typedef uint64_t			(*func_mysqlnd_res__num_rows)(const MYSQLND_RES * const result);
 typedef unsigned int		(*func_mysqlnd_res__num_fields)(const MYSQLND_RES * const result);
 typedef enum_func_status	(*func_mysqlnd_res__skip_result)(MYSQLND_RES * const result);
@@ -678,7 +677,6 @@ MYSQLND_CLASS_METHODS_TYPE(mysqlnd_res)
 	func_mysqlnd_res__fetch_into fetch_into;
 	func_mysqlnd_res__fetch_row_c fetch_row_c;
 	func_mysqlnd_res__fetch_all fetch_all;
-	func_mysqlnd_res__fetch_field_data fetch_field_data;
 	func_mysqlnd_res__num_rows num_rows;
 	func_mysqlnd_res__num_fields num_fields;
 	func_mysqlnd_res__skip_result skip_result;