CREATE TABLE tmp_pyodps_439117fc_9ef7_4086_899d_a5bf77d653e5 LIFECYCLE 1 AS SELECT/*+mapjoin(t5)*/t2.`name`,t2.`id`,t2.`fid`,(IF((t5.`fid_max_1570691146`-t5.`fid_min_1570691146`)=0,0,(t2.`fid`-t5.`fid_min_1570691146`)/(t5....
在t1表上做并行扫表，然后将数据做shuffle分发到下一阶段Workers-在t2表上做并行扫表，然后将数据做shuffle分发到下一阶段Workers-在下阶段Workers上完成co-location join后，结果汇总到Leader SELECT/*+PARALLEL(t1)PARALLEL(t2)PQ_...
price` AS T_A19_3_,ALI_T_1_.`sku_sales_price` AS T_ADA_4_,ALI_T_1_.`sku_margin_rate` AS T_A48_5_,ALI_T_1_.`shop_no` AS T_A9A_6_,ALI_T_1_.`sku_real_price` AS T_AFC_7_,TO_CHAR(ALI_T_1_.`created_datetime`,'yyyy')AS T_A72_8_,...
prepare s1 as select t.a,t2.avg_b from t join(select avg(b)as avg_b,a from t2 group by a)t2 on t2.a=t.a and t.c$1 order by t.a;prepare s2 as select t.a,t2.avg_b from t join lateral(select avg(b)as avg_b from t2 where t2.a=...
Number(self IN JSON_OBJECT_T,key VARCHAR2)RETURN NUMBER MEMBER FUNCTION get_Date(self IN JSON_OBJECT_T,key VARCHAR2)RETURN DATE MEMBER FUNCTION get_Object(self IN JSON_OBJECT_T,key VARCHAR2)RETURN JSON_OBJECT_T MEMBER ...
可选值：dynamicSettings：集群动态配置 indexTemplate：索引模板配置 ilmPolicy：索引生命周期配置 staticSettings：集群动态配置 String Body 否 {"content":"{ \t\"persistent\":{ \t\t\"search\":{ \t\t\t\"max_buckets\":\"10000\"\t\...
时间间隔序号 预设的时间边界 GROUP BY time()时间间隔 包含的数据点 返回的时间戳 1 time=2015-08-18T00:00:00Z AND time 2015-08-18T00:12:00Z time=2015-08-18T00:06:00Z AND time 2015-08-18T00:12:00Z 8.005 2015-08-18T00:00:00Z 2 ...
\"mem\"\t\t},{ \t\t\t\"amount\":0,\t\t\t\"name\":\"T4\"\t\t},{ \t\t\t\"amount\":10,\t\t\t\"type\":\"SCALAR\",\t\t\t\"name\":\"disk_ratio_9999\"\t\t},{ \t\t\t\"amount\":20480,\t\t\t\"type\":\"SCALAR\",\t\t\t\"name\":\"disk_...
PolarDB 支持条件下推（HAVING to WHERE）功能。...条件下推变换后结果为：SELECT t1.a,MAX(t1.b),t1.c FROM t1 WHERE((t1.a=t1.c)AND(t1.a 1))OR(t1.a 3)GROUP BY t1.a HAVING((t1.a=t1.c)AND(t1.a 1))OR((t1.a 3)AND(t1.c 3));
针对指定SQL Pattern，添加Hints 为相同Pattern的SQL，执行 nested loop join 策略，示例如下：/*+nested_loop_join=true*/PERSIST_PLAN SELECT t1.c1FROM t1 INNER JOIN t2 ON t1.c1=t2.c1 WHERE t1.c2 9999;查询指定SQL是否配置过Hints ...
explain select count(*)from t1 join t2 on t1.id=t2.id group by t1.name,t2.name order by t1.name,t2.name;Project(count(*)="count(*)")MemSort(sort="name ASC,name0 ASC")HashAgg(group="name,name0",count(*)="COUNT()")BKAJoin...
主要包括以下场景：非等值/等值简单谓词推导，示例如下：原SQL SELECT*FROM t1,v1 WHERE v1.a t1.a AND t1.a 1-推导后的SQL SELECT*FROM t1,v1 WHERE v1.a t1.a AND t1.a 1 AND v1.a 1-原SQL SELECT*FROM t1,v1 WHERE v1.b t1.c AND t1.c t...
调用某些物模型相关API时，请求参数或返回参数中包含参数 ThingModelJson，该参数的取值格式为物模型功能定义在物联网平台系统的存储结构，与TSL中的数据结构有所不同。ThingModelJson中所有字段按照key的字符排序。物模型功能定义的限制...
[\t\t{ \t\t\t\"name\":\"file_compressor\",\t\t\t\"type\":\"zstd\"\t\t},\t\t{ \t\t\t\"name\":\"no_compressor\",\t\t\t\"type\":\"\"\t\t} \t],\t\"indexs\":[\t\t{ \t\t\t\"index_fields\":\"name\",\t\t\t\"index_name\":\"ids\",\t...
需要注意的重要事项是，所有的field value都在 ACOS()函数的可计算范围里（-1到1）：SELECT"of_capacity"FROM"park_occupancy"WHERE time='2017-05-01T00:00:00Z' AND time='2017-05-09T00:00:00Z' name:park_occupancy time capacity-2017...
示例如下：SELECT a FROM t WHERE EXISTS(SELECT/*+subq1*/t2.a FROM t2 WHERE t2.a 10)AND EXISTS(SELECT/*+subq2*/t2.a FROM t2)从上述示例中可以看出，左侧 subq1 的条件更严格，结果集更小，是右侧 subq2 集合的子集，所以称为左子集。...
DELETE t1,t2 FROM t1 INNER JOIN t2 INNER JOIN t3 WHERE t1.id=t2.id AND t2.id=t3.name LIMIT 10001;DELETE FROM t1,t2 USING t1 INNER JOIN t2 INNER JOIN t3 WHERE t1.id=t2.id AND t2.id=t3.name LIMIT 10001;说明 t1、t2和t3的拆分...
INTERFACE_EXPORT(hello,(add)(sub))INTERFACE_EXPORT 导出方法仅支持以下类型的参数：int8_t uint8_t int16_t uint16_t int32_t uint32_t int64_t uint64_t bool std:string Identity std:vector T（“T”仅限于上面的类型，如 std:vector...
INTERFACE_EXPORT(hello,(add)(sub))INTERFACE_EXPORT 导出方法仅支持以下类型的参数：int8_t uint8_t int16_t uint16_t int32_t uint32_t int64_t uint64_t bool std:string Identity std:vector T（“T”仅限于上面的类型，如 std:vector...
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} dbName.tableName[-p]partitionSpec 功能 表示查看指定表或者分区的存储状态。示例：查看表...
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} dbName.tableName[-p]partitionSpec 功能 表示查看指定表或者分区的存储状态。示例：查看表...
参数说明 参数 数据类型 方向 说明 handle uintptr_t 输入 TLS连接句柄 返回值说明 值 说明 0 操作失败=0 操作成功 HAL_SSL_Establish 接口原型 uintptr_t HAL_SSL_Establish(_IN_const char*host,_IN_uint16_t port,_IN_const char*ca_crt...
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} dbName.tableName[-p]partitionSpec 功能 表示查看指定表或者分区的存储状态。示例：查看表...
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} dbName.tableName[-p]partitionSpec 功能 表示查看指定表或者分区的存储状态。示例：查看表...
After optimization SELECT SUM(`testdb`.`t2`.`a`)AS `SUM(a)` from `testdb`.`t2` HAVING(0 count(`testdb`.`t2`.`b`))Prepare test data:DROP TABLE IF EXISTS t2;CREATE TABLE t2(id INT PRIMARY KEY AUTO_INCREMENT,a INT,b INT);...
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 Join Hash ...