t载体-t载体文档介绍内容-阿里云

JindoTable使用说明

示例 jindo table-unarchive-o-t db1.t1-p date=2020-03-16,category=1 jindo table-unarchive-i-t db1.t2-status 语法 jindo table-status {-t}[-p]功能表示查看指定表或者分区的存储状态。示例：查看表db1.t2的状态。jindo table-status...

insert into t_result select t1.day,t2.brand,t1.groupid,t3.tag1,t3.tag2,t3.tag3,.count(1)as cnt,array_agg(uid)as uids,hll_add_agg(hll_hash_integer(uid))as hll_uids from t1,t2,t3 where t1.uid=t3.uid and t1.uid=t2.uid group ...

DescribeScdnDomainPvData

调用DescribeScdnDomainPvData获取加速域名最小1小时粒度的PV页面访问的统计数据。说明仅支持一个域名，或当前用户下所有域名。最多可获取最近90天的数据。不指定 StartTime和 EndTime...BB75-C810DE34C761</RequestId><DomainName>example....

ePQ支持分区表查询

segments:6)->Append->Hash Join Hash Cond:(t2_p1.id=t3_p1.id)->Partial Seq Scan on t2_p1->Hash->Full Seq Scan on t3_p1->Hash Join Hash Cond:(t2_p2.id=t3_p2.id)->Partial Seq Scan on t2_p2->Hash->Full Seq Scan on t3_p2->Hash ...

开发设备端

int32_t HAL_AT_Uart_Deinit(uart_dev_t*uart)int32_t HAL_AT_Uart_Init(uart_dev_t*uart)int32_t HAL_AT_Uart_Recv(uart_dev_t*uart,void*data,uint32_t expect_size,uint32_t*recv_size,uint32_t timeout)int32_t HAL_AT_Uart_Send(uart_...

DescribeGroupStruct-获取分组结构

\"testfuxian\",\t\t\"groupFather\":0,\t\t\"groupId\":11501234,\t\t\"childGroups\":[],\t\t\"groupLevel\":1,\t\t\"groupIndex\":100,\t\t\"groupFlag\":1 \t},\t{ \t\t\"groupName\":\"testfuxian\",\t\t\"groupFather\":0,\t\t\...

RecommendTemplates

[\t\t\"*\"\t],\t\"settings\":{.}.}","templateName":"indexTemplate"},{"content":"{ \t\"persistent\":{ \t\t\"search\":{ \t\t\t\"max_buckets\":\"10000\"\t\t} \t} }","templateName":"dynamicSettings"}],"RequestId":"66B060CF-...

开发设备端

int32_t HAL_AT_Uart_Deinit(uart_dev_t*uart)int32_t HAL_AT_Uart_Init(uart_dev_t*uart)int32_t HAL_AT_Uart_Recv(uart_dev_t*uart,void*data,uint32_t expect_size,uint32_t*recv_size,uint32_t timeout)int32_t HAL_AT_Uart_Send(uart_...

uservice

根据指定的微服务名称，上下文、最大命令ID，创建微服务，创建成功返回 uservice_t 指针，失败返回NULL 参数：name:服务名字 process_rpc:服务远程调用处理函数 context:服务自定义上下文，用户在编写微服务处理函数时，可使用该上下文 ...

蓝牙设备端SDK OTA接口

参数无返回值返回芯片flash最小擦写单元大小 hal_flash_erase int32_t hal_flash_erase(hal_partition_t pno,uint32_t off_set,uint32_t size);参数名称类型描述 pno hal_partition_t flash 分区ID off_set uint32_t 相对分区起始...

JindoTable使用说明

示例 jindo table-unarchive-o-t db1.t1-p date=2020-03-16,category=1 jindo table-unarchive-i-t db1.t2-status 语法 jindo table-status {-t}[-p]功能表示查看指定表或者分区的存储状态。示例：查看表db1.t2的状态。jindo table-status...

JindoTable使用说明

示例 jindo table-unarchive-o-t db1.t1-p date=2020-03-16,category=1 jindo table-unarchive-i-t db1.t2-status 语法 jindo table-status {-t}[-p]功能表示查看指定表或者分区的存储状态。示例：查看表db1.t2的状态。jindo table-status...

JindoTable使用说明

示例 jindo table-unarchive-o-t db1.t1-p date=2020-03-16,category=1 jindo table-unarchive-i-t db1.t2-status 语法 jindo table-status {-t}[-p]功能表示查看指定表或者分区的存储状态。示例：查看表db1.t2的状态。jindo table-status...

JindoTable使用说明

示例 jindo table-unarchive-o-t db1.t1-p date=2020-03-16,category=1 jindo table-unarchive-i-t db1.t2-status 语法 jindo table-status {-t}[-p]功能表示查看指定表或者分区的存储状态。示例：查看表db1.t2的状态。jindo table-status...

ListArtifactVersions-查询部署物版本信息

\\\"V2022xxxx\\\"}","SupportRegionIds":"[\t\t\t\t\t\"cn-beijing\",\t\t\t\t\t\"cn-hangzhou\",\t\t\t\t\t\"cn-shanghai\" \t\t\t\t]","GmtModified":"2022-10-20T02:19:55Z","Progress":"100","GmtCreate":"2022-10-20T02:19:53Z",...

DescribeDisposeAndPlaybook-获取需要被处置的实体...

}]\"\t\t},\t\t{ \t\t\t\"Field\":\"scope\",\t\t\t\"Necessary\":true,\t\t\t\"Value\":\"$.main_user_id\"\t\t},\t\t{ \t\t\t\"Field\":\"startTime\",\t\t\t\"Necessary\":true \t\t},\t\t{ \t\t\t\"Field\":\"endTime\",\t\t\t\...

表设计最佳实践

SELECT t1.key1,t1.key2,t1.col1,t1.col2 FROM table1 t1 LEFT OUTER JOIN table2 t2 ON t1.key1=t2.key1 AND t1.key2=t2.key2 LEFT OUTER JOIN table3 t3 ON t1.key1=t3.key1 AND t1.key2=t3.key2 WHERE t2.key1 IS NULL OR t3.key1 IS ...

查询改写与下推

返回执行计划信息如下：Project(id="id")HashJoin(condition="id=id AND id=id0",type="inner")Gather(concurrent=true)LogicalView(tables="t2_[0-3],l2_[0-3]",shardCount=4,sql="SELECT `t2`.`id`,`l2`.`id` AS `id0` FROM `t2` AS `t2`...

查询改写与下推

Project(id="id")HashJoin(condition="id=id AND id=id0",type="inner")Gather(concurrent=true)LogicalView(tables="t2_[0-3],l2_[0-3]",shardCount=4,sql="SELECT `t2`.`id`,`l2`.`id` AS `id0` FROM `t2` AS `t2` INNER JOIN `l2` AS `l...

WITH子句

查询和分析语句*|with T1 AS(SELECT host,avg(request_length)length FROM website_log GROUP BY host),T2 AS(SELECT host,avg(request_length)length FROM access_log GROUP BY host)SELECT T1.host,T1.length,T2.length FROM T1 JOIN T2 ...

扫描全部/部分分库分表

按条件在指定分表上执行，有JOIN的情况：SELECT/*+TDDL:scan('t1,t2',condition='t1.id=2 and t2.id=2')*/*FROM t1 a JOIN t2 b ON a.id=b.id WHERE b.name="test"执行后会首先计算出逻辑表 t1 t2 满足 condition 条件的所有物理表，然后...

TTY设备驱动程序开发指南

size_t aos_tty_rx_buffer_produce(aos_tty_t*tty,const void*buf,size_t count);在中断处理程序中使用 aos_tty_rx_buffer_produce 将硬件接收到的数据送入设备软件核心层。参数 count 为硬件接收到的字节数目。驱动程序应在调用该函数之前...

CASE WHEN

返回结果如下：+-+|id_t|+-+|t1|t2|t2|t3|t3|t3|t3|t3|t3|+-+格式二：select case id when 1 then 't1' when 2 then 't2' else 't3' end as id_t from mf_casewhen;返回结果如下：+-+|id_t|+-+|t1|t2|t3|t3|t3|t3|t3|t3|t3|+-+相关函数 ...

Hash Join的并行加速

workers:4)(cost=10.82 rows=4)->Parallel inner hash join(t2.c2=t1.c1)(cost=0.57 rows=1)->Parallel table scan on t2,with parallel partitions:1(cost=0.03 rows=1)->Parallel hash->Parallel table scan on t1,with parallel ...

RecognizeAdvanced-全文识别高精版

wnum\":126,\t\"prism_wordsInfo\":[{ \t\t\"angle\":89,\t\t\"direction\":0,\t\t\"height\":541,\t\t\"pos\":[{ \t\t\t\"x\":982,\t\t\t\"y\":223 \t\t},{ \t\t\t\"x\":1522,\t\t\t\"y\":223 \t\t},{ \t\t\t\"x\":1522,\t\t\t\"y\":266 \...

扫描全部/部分分库分表

按条件在指定分表上执行，有JOIN的情况：SELECT/*+TDDL:scan('t1,t2',condition='t1.id=2 and t2.id=2')*/*FROM t1 a JOIN t2 b ON a.id=b.id WHERE b.name="test"执行后会首先计算出逻辑表 t1 t2 满足 condition 条件的所有物理表，然后...

百度智能云角色 SSO

四、在百度智能云中创建角色创建百度智能云角色（如果您有存量的百度智能云子用户，可以跳过此步骤），选择【多用户访问控制】【角色管理】【增加角色】，打开如下界面输入角色名称，例如：DemoSSORole，角色载体-载体类型，选择外部账号...

console命令工具

t:topic名称 lc-p test_project-t test_topic 重启connector-p:project名称-t:topic名称-c:connectorId，可通过数据同步页签查看 rc-p test_project-t test_topic-c connectorId 更新connector ak-p:project名称-t:topic名称-c:connectorId...

查询性能优化指导

segments:3)(cost=0.00.431.00 rows=1 width=16)->Table Scan on t(cost=0.00.431.00 rows=1 width=16)Filter:b=1 Settings:optimizer=on Optimizer status:PQO version 1.609(5 rows)使用如下的语句在t表的b列上建立BTree索引：postgres=...

ST_nearestApproachDistance

float8 ST_nearestApproachDistance(trajectory traj,trajectory traj2,timestamp t1,timestamp t2);参数参数名称描述 traj1 轨迹对象1。traj2 轨迹对象2。t1 开始时间。t2 结束时间。range 时间段。示例 Select ST_...

JOIN操作类型

SELECT t1.id,t2.id FROM tj_shop AS t1 LEFT JOIN tj_item AS t2 ON t1.id=t2.id 说明如果右表值不唯一，建议不要连续使用过多 left join，以免在JOIN过程中产生数据膨胀 Inner Join：内连接。关键字 inner 可以省略。返回满足ON条件的行...

JOIN实现类型

SELECT t1.id,t2.id FROM tj_shop AS t1 JOIN tj_item AS t2 ON t1.id>t2.id 说明数据会膨胀，性能比较差说明链接的表类型为KV/KKV/Summary时，该表的查询条件中必须包含PK等值条件，参考 KV、KKV查询的使用限制。Hash Join：用于包含...

聚合优化和执行

explain select count(*)from t1 join t2 on t1.id=t2.id group by t1.name,t2.name order by t1.name,t2.name;返回信息如下：Project(count(*)="count(*)")MemSort(sort="name ASC,name0 ASC")HashAgg(group="name,name0",count(*)="COUNT...

获取请求量详情

XML 格式<DescribeRequestGraphResponse><RequestDetails><ZoneRequestTop><Time>2019-10-25T16:00Z</Time><RequestCount>97</RequestCount><Timestamp>1572019200000</Timestamp></ZoneRequestTop><ZoneRequestTop><Time>2019-10-25T17:00...

单样本T检验

本文为您介绍 Designer 提供的单样本T检验。单样本T检验旨在检验某个变量的总体均值与某个指定值之间是否存在显著差异，其检验的样本必须总体服从正态分布。组件配置您可以使用以下任意一种方式，配置单样本T检验组件参数。方式一：可视化...

ST_nearestApproachDistance

float8 ST_nearestApproachDistance(trajectory traj,trajectory traj2,timestamp t1,timestamp t2);参数参数名称描述 traj1 轨迹对象1。traj2 轨迹对象2。t1 开始时间。t2 结束时间。range 时间段。示例 Select ST_...

获取请求量详情

XML 格式<DescribeRequestGraphResponse><RequestDetails><ZoneRequestTop><Time>2019-10-25T16:00Z</Time><RequestCount>97</RequestCount><Timestamp>1572019200000</Timestamp></ZoneRequestTop><ZoneRequestTop><Time>2019-10-25T17:00...

HTTP2接入

参数说明参数数据类型方向说明 conn_info device_conn_info_t*输入建连参数。user_cb http2_stream_cb_t*输入用户注册事件的回调函数。参数附加说明 typedef struct { char*product_key;char*device_name;char*device_secret;char*...

使用 FORALL 语句

FORALL i IN t_empno.FIRST.t_empno.LAST UPDATE emp SET sal=t_sal(i)WHERE empno=t_empno(i);END;SELECT*FROM emp WHERE empno>9000;empno|ename|job|mgr|hiredate|sal|comm|deptno-+-+-+-+-+-+-+-9001|JONES|ANALYST|3350.00|40 9002|...

PyODPS的空值处理

CREATE TABLE tmp_pyodps_40755ebd_2d2a_482e_b360_3f3da0d5422c LIFECYCLE 1 AS SELECT t1.`id`,t1.`name`,IF(t1.`f1` IS NULL,t1.`f2`,t1.`f1`)AS `f1`,IF(t1.`f2` IS NULL,t1.`f2`,t1.`f2`)AS `f2`,IF(t1.`f3` IS NULL,t1.`f2`,t1.`f3`)...

t载体

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