Will Postgres automatically cache "active" records from a large table?
将数据库自动缓存”从一个大的表活动”的记录?
We sit at a large table, with a second table perpendicular to it at one end of the first table.
我们坐在一个大桌子,与第二个表垂直于它在一端的第一次圆桌会议。
On the whiteboard, I drew a large table, split by days (21 days to cultivate a new habit) and by habits.
在白板上,我画了一个大表,以天为单位(21天来培养一个新的习惯)和以习惯为单位。
This pergola gives access to both buildings and features a large table for alfresco dining on summer days.
可以通过绿廊进入建筑,一张大桌别具特色,在夏天能用于露天餐饮。
However, even then it might be possible to normalize a large table selectively into several smaller tables.
但是,尽管如此,将大表有选择性地进行规范化处理,分为几个更小的表是可能的。
The preceding query requires MySQL to perform a full table scan, the slowest type of query for a large table.
上面的那个查询会执行一个全表扫描,对于一个大表来说这是最慢的一种查询方式。
But at the factory, they also cook the meat for customers. Then they put the meat on a large table, not on plates.
但是在加工厂,他们还为顾客做牛头肉,然后将这种肉放到一个大桌子上,不是放到盘子里。
This can be expensive in terms of query performance, especially if you only want a subset of the rows from a large table.
就查询性能而言,这是十分昂贵的,尤其是当您只需要大型表中的行的子集时。
A large table space named SYSCATSPACE, which is used to store the system catalog tables and views associated with the database.
一个名为syscatspace的大表空间,用于存储与数据库有关的系统目录表和视图。
The patients, while some look frighteningly thin, are smiling and joking as they sit playing card games round a large table in the garden.
尽管有时看起来瘦得吓人,这些病人们围着花园中的大桌子玩扑克牌、说说笑笑时都面带笑容。
Stainless steel table head do not have to pay attention to, but in the initial purchase of watches, it is best to pick a large table.
不锈钢的表把头不必刻意注意,但在初购买选择手表时,好要挑大表把的。
The first thing you’d notice is that all the programmers are in a room together, usually sitting around a large table in the middle of the room.
你注意到的第一件事是所有程序员都同在一间屋里,经常是围坐在房屋中间的一张大桌子边。
For example, you can divide a large table into ten smaller, children tables that contain data and business process rules for each of the ten years.
例如,您可以将一个大表分成十个小的子表,每个子表包括十年中的一年的数据和业务流程规则。
The first thing you'd notice is that all the programmers are in a room together, usually sitting around a large table in the middle of the room.
你注意到的第一件事是所有程序员都同在一间屋里,经常是围坐在房屋中间的一张大桌子边。
Generally kept in a large table plaque mouth, people entered the room, the feeling will not glance at the same time play the role of wind shading.
较大的插屏一般放在当口处,使人一进门不会有一览无余的感觉,同时又起到挡风遮光的作用。
He introduced himself as Mon and volunteered to escort me to a hotel, just as soon as he'd finished serving a large table of Han Chinese businessmen.
他介绍说自己名字叫孟,他正结束了为一大桌汉族商人的服务,自告奋勇陪我到旅馆去。
That's why this time of year, TV and radio ads are filled with smiling families sitting around a large table in holiday sweaters, passing the dinner rolls.
这就是为什么每年在这个时候,电视和广播电台广告播放面带微笑的一家人在假期围坐在一张大圆桌旁,相互递面包卷。
A large table space named USERSPACE1, which is used to store all user-defined objects along with table data, index data, large object (LOB) data, and long value data.
一个名为userspace1的大表空间,用于存储所有用户定义对象,以及表数据、索引数据、大对象(LOB)数据和长值数据。
She picked a large bunch of flowers for table decoration.
她采了一大捧花来装饰桌子。
Without this enclosure, but just within the street entrance, sat a grey-haired gentleman at a small table, with a large open ledger of some kind before him.
没有围墙,就在街口,一位白发苍苍的绅士坐在一张小桌旁,面前摆着一本打开的大账本。
The table was a large one, but the three were all crowded together at one corner of it.
桌子很大,但三个人都挤在桌子的一角。
There is a large bowl of jiaozi on the table.
桌子上有一大碗饺子。
Consider a banking application where there is a very large account table for one of the dimensions.
考虑一个银行应用程序,其中针对一个维度有一个极其大型的帐户表。
For example, an analytical application might require sales information contained in a large fact table to be retrieved by product, by region, and by date (three dimensions).
例如,分析应用程序可能需要按产品、地区和日期(三个维)获取一个大型事实表中的销售信息。
We found a bigger difference for queries that touch a large number of rows, such as a table scan over all 20,000 XML documents with string comparison on every document.
我们发现涉及大量行的查询的性能差异比较大,比如对所有20,000个XML文档进行全表扫描并对每个文档比较字符串。
He reached for a large projector on the table and flipped it on with a hum. The far wall lighted up, and we began viewing images from the autopsies.
他伸手打开了桌子上的投影仪,对面的墙上呈现出了当日尸检的照片。
At eleven o 'clock Obama's top advisers began gathering around a large conference table.
11点钟,奥巴马的首席顾问们开始汇聚在一张大会议桌前。
At eleven o 'clock Obama's top advisers began gathering around a large conference table.
11点钟,奥巴马的首席顾问们开始汇聚在一张大会议桌前。
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