How do I query the allocated heap memory size and free heap memory size of an application? How do I obtain system logs when an application fault occurs? How do I use the hdc command to send a local file to a remote device? How do I check whether an application is a system appli...
How do I query the MAC address on a HarmonyOS 2-in-1 device? How do I clear the application cache on the mobile phone using the hdc command? How do I wake up a device and view the screen status using the hdc command? Can an .app file be installed using the hdc command?
These optimizations rewrite the expression trees to a more compact and optimized form that helps avoid redundant expression evaluation at run time. Performance optimizations controlled by this query option include: Constant folding (added in ) Extracting common conjuncts from disjunctions (added in ) S...
return false; nsDisplayItem* child = mList.GetBottom(); // Only try folding our opacity down if we have a single // child. We could potentially do this also if we had multiple // children as long as they don't overlap. if (!child || child->GetAbove()) { return false; @@ -...
http://blog.itpub.net/267265/viewspace-1298186/ --上午写了一篇blog,关于11G 长时间分析的问题.在测试使用提示OPT_PARAM与OPTIMIZER_FEATURES_ENABLE参数,遇到一些诡异的问题, --做一个记录. $ cat a.sql SELECT f.constraint_name, f.owner, f.r_owner, p.table_name, SYS.all_cons_columns.column_nam...
Query Block Name / Object Alias (identified by operation id): --- 1 - SEL$1 / T1@SEL$1 3 - SEL$1 / T3@SEL$1 4 - SEL$1 / T1@SEL$1 Outline Data --- /*+ BEGIN_OUTLINE_DATA IGNORE_OPTIM_EMBEDDED_HINTS OPTIMIZER_FEATURES_...
_query_rewrite_setopgrw_enable TRUE FALSE _optimizer_join_order_control 3 0 _bloom_filter_enabled TRUE FALSE _optimizer_join_elimination_enabled TRUE FALSE _gby_hash_aggregation_enabled TRUE FALSE _globalindex_pnum_filter_enabled TRUE FALSE _sql_model_unfold_forloops RUN_TIME COMPILE_TIME _...
How does a Web component access a local resource file and add query parameters? How do I determine whether a web page scrolls to the top or bottom and transfer the scrolling event to the native page? How do I use the tag to open HTML5 pages of the Web component? How do I pre...