alicloud_rds_clone_db_instance
the system automatically allocates by using VPCId and VSwitchId.used_time-(Optional)The subscription period of the new instance.This parameter takes effect only when you select the subscription billing method for the new ...
alicloud_rds_upgrade_db_instance
essd2:ESSDs of PL2.cloud_essd3:ESSDs of PL3.payment_type-(Required)The billing method of the new instance.Valid values:PayAsYouGo and Subscription.db_instance_class-(Required)The instance type of the new instance.For ...
SELECT
query[,.]]SELECT[ALL|DISTINCT[ON(expression[,.])]]*|expression[[AS]output_name][,.][FROM from_item[,.]][WHERE condition][GROUP BY grouping_element[,.]][HAVING condition[,.]][{UNION|INTERSECT|EXCEPT}[ALL]select][ORDER BY ...
INSERT OVERWRITE
CREATE TABLE public.holo_child_2 PARTITION OF public.tableA FOR VALUES IN('20201216');CREATE TABLE public.holo_child_3 PARTITION OF public.tableA FOR VALUES IN('20201217');COMMIT;创建表B作为数据输入 BEGIN;CREATE TABLE ...
alicloud_alb_listener
1 to 60.Unit:Seconds.listener_description-(Optional)The description of the listener.The description must be 2 to 256 characters in length.The name can contain only the characters in the following string:/^([^\x00-\xff]|[\w...
使用pg_pathman插件
分区列名 parttype INTEGER NOT NULL,-分区类型(hash or range)range_interval TEXT,-range分区的interval CHECK(parttype IN(1,2))/*check for allowed part types*/);pathman_config_params CREATE TABLE IF NOT EXISTS pathman_config_...
使用pg_pathman插件
分区列名 parttype INTEGER NOT NULL,-分区类型(hash or range)range_interval TEXT,-range分区的interval CHECK(parttype IN(1,2))/*check for allowed part types*/);pathman_config_params CREATE TABLE IF NOT EXISTS pathman_config_...
数据类型隐式转换规则
ERROR:column"c1"is of type timestamp without time zone but expression is of type time without time zone LINE 1:insert into t_timestamp_without_time_zone values('08:00:00':.^HINT:You will need to rewrite or cast the ...
alicloud_ess_scaling_groups
This data source provides available scaling group resources.Example Usage data"alicloud_ess_scaling_groups""scalinggroups_ds"{ ids=["scaling_group_id1","scaling_group_id2"]name_regex="scaling_group_name"} output"first_...
5` is not under aggregate function and not in ...
问题描述 Quick BI仪表板报错："Column `col_5` is not under aggregate function and not in GROUP BY(version*.*.*.*)。问题原因 非聚合字段需要出现在group by里。解决方案 将计算字段中涉及到的非聚合字段拖拽到配置面板的行中即可。...
关联子查询
SELECT*FROM ts1 WHERE ts1.a IN(SELECT AVG(ts2.a)FROM ts2 WHERE ts1.b=ts2.b GROUP BY ts2.c);示例 使用关联子查询，查询商品的最低折扣：SELECT id,(SELECT MIN(discount)FROM item WHERE goods.id=goods_id)FROM goods;您也可以通过...
性能测试指南
SELECT Carrier,c,c2,c*100/c2 as c3 FROM(SELECT Carrier,count(*)AS c FROM ontime WHERE DepDelay>10 AND Year=2007 GROUP BY Carrier)ANY INNER JOIN(SELECT Carrier,count(*)AS c2 FROM ontime WHERE Year=2007 GROUP BY Carrier)...
转换函数
这一步跟同时使用 MEAN()函数和 GROUP BY time()子句、但不使用 ACOS()的情形一样：SELECT MEAN("of_capacity")FROM"park_occupancy"WHERE time>='2017-05-01T00:00:00Z' AND time<='2017-05-09T00:00:00Z'GROUP BY time(3d)name:park_...
GROUP BY子句
h2o_feet time count-2015-08-18T00:00:00Z1<-----Note that this timestamp occurs before the startof the query's time range 2015-08-18T00:12:00Z 1 说明 TSDB For InfluxDB®对 GROUP BY 的时间间隔使用预设的四舍五入时间边界，不依赖于 ...
DQL操作
功能 是否支持 命令格式 是 列表达式（select_expr）支持*支持 distinct 不支持正则表达式 WHERE子句（where_condition）Dataphin 2.9.2及之后版本支持UDF分区裁剪 当SQL语句设置了group by属性，即 set odps.sql.groupby.position.alias=...
DQL操作
功能 是否支持 命令格式 是 列表达式（select_expr）支持*支持 distinct 不支持正则表达式 WHERE子句（where_condition）Dataphin 2.9.2及之后版本支持UDF分区裁剪 当SQL语句设置了group by属性，即 set odps.sql.groupby.position.alias=...
列存索引中GroupJoin算子的实现
背景 SELECT key1,SUM(sales)as total_sales FROM fact_table LEFT JOIN dimension_table ON fact_table.key1=dimension_table.key1 GROUP BY fact_table.key1 ORDER BY total_sales LIMIT 100;在 PolarDB IMCI中，类似以上查询语句的执行...
条件下推（WHERE条件下推派生表）
示例1：SELECT*FROM t1,(SELECT x FROM t2 GROUP BY x)d_tab,t2 WHERE t1.a=d_tab.x AND t1.a>6;条件下推变换后结果为：SELECT*FROM t1,(SELECT x FROM t2 WHERE x>6 GROUP BY x)d_tab WHERE t1.a=d_tab.x AND t1.a>6;示例2：SELECT f1 ...
7.0版TPC-H性能测试
Query AnalyticDB PostgreSQL 7.0（单位为s）Greenplum（单位为s）Q1 11.59 26.34 Q2 2.52 6.07 Q3 2.88 17.05 Q4 3.16 39.1 Q5 3.97 24.49 Q6 0.61 1.56 Q7 2.64 20.66 Q8 3.23 23.16 Q9 13.91 63.56 Q10 4.81 13.92 Q11 1.66 3.82 Q12 6....
alicloud_ga_endpoint_group
The resource ID in terraform of Endpoint Group.endpoint_group_ip_list-(Available since v1.213.0)The active endpoint IP addresses of the endpoint group.endpoint_group_ip_list will change with the growth of network traffic....
表表达式
该表表达式包含一个 FROM 子句，该子句后面可以根据需要选用 WHERE、GROUP BY 和 HAVING 子句。最简单的表表达式只是引用磁盘上的一个表，一个所谓的基本表，但是我们可以用更复杂的表表达式以多种方法修改或组合基本表。表表达式里可选的 ...
表表达式
条件连接 T1 {[INNER]|{ LEFT|RIGHT|FULL }[OUTER]} JOIN T2 ON boolean_expression T1 {[INNER]|{ LEFT|RIGHT|FULL }[OUTER]} JOIN T2 USING(join column list)T1 NATURAL {[INNER]|{ LEFT|RIGHT|FULL }[OUTER]} JOIN T2 INNER 和 OUTER ...
alicloud_ess_scheduled_task
value-(Optional,Available in 1.90.0+)The maximum number of instances in a scaling group when the scaling method of the scheduled task is to specify the number of instances in a scaling group.desired_capacity-(Optional,...
使用限制
如：WHERE t1.a in(SELECT t2.a FROM t2 INNER JOIN t3 on t2.a=t3.a AND t2.b>t1.b)；子查询中含有window function，且关联项在HAVING条件中的 SELECT 语句。子查询中含有UNION，且关联项出现在UNION的子查询中的 SELECT 语句。表达式限制...
对接Grafana
参数 说明 Query 查询和分析语句示例如下：$hostname|select count(1)as pv,referer group by referer order by pv desc 在展示结果中，$hostname 会被替换成您选择的域名。X-Column 配置为 pie。Y-Column 配置为 referer,pv。用于展示延时...
alicloud_log_dashboard
SELECT COUNT(name)as ct_name,COUNT(product)as ct_product,name,product GROUP BY name,product","start":"-86400s","end":"now"},"display":{"xAxis":["ct_name"],"yAxis":["ct_product"],"xPos":0,"yPos":0,"width":10,"height":12,...
实时物化视图（Beta）
实时物化视图的GROUP BY Key和Value都不支持表达式，比如不支持 SUM(CASE WHEN COND THEN A ELSE B END)、SUM(col1+col2)、GROUP BY date_trunc('hour',ts)。每张明细表最多创建10个物化视图，物化视图数量和资源消耗成正比。如果基于分区...
Union All
本文为您介绍Union All修改的可兼容性和不可兼容性详情。可兼容的修改 调整Union All的...select a,sum(b),max(c)from(select a,b,c from MyTable union all select a,b,c from MyTable2 union all select a,b,c from MyTable3)group by a;
使用方法
基本查询 SELECT[DISTINCT](*|expression)[[AS]alias][,.]FROM table_name[WHERE condition][GROUP BY expression[,.][HAVING condition]][ORDER BY expression[ASC|DESC][,.]][LIMIT[offset,]size]Join查询 SELECT expression FROM table_...
CREATE MATERIALIZED VIEW
基于满足物化视图场景的数据创建物化视图，支持分区和聚簇场景。背景信息 视图 是一种虚拟...select a,count(b)from(select a,b from src group by a,b)group by a;select a,count(b)from mv group by a;select a,count(b)from src group by a...
get_log_all
query String 否 level:Information|select event_id as Key1,COUNT(*)as Key2 group by Key1 查询和分析语句。更多信息，请参见 查询概述 和 分析概述。说明 当 query 参数中有分析语句（SQL语句）时，line 参数和 offset 参数需要设置为0...
查询改写功能
CREATE MATERIALIZED VIEW mv0 REFRESH NEXT now()+interval 1 day ENABLE QUERY REWRITE AS SELECT l.returnflag,l.linestatus,SUM(l.extendedprice*(1-l.discount))AS sum_disc_price,count(*)AS count_order FROM lineitem AS l GROUP ...
如何分析及优化慢SQL
orders,nation where s_suppkey=l_suppkey and ps_suppkey=l_suppkey and ps_partkey=l_partkey and p_partkey=l_partkey and o_orderkey=l_orderkey and s_nationkey=n_nationkey and p_name like '%yellow%')as profit group by nation,o...
TPC-H Benchmark
count(*)as order_count from(select*from lineitem where l_commitdate)t1 right semi join orders on t1.l_orderkey=o_orderkey where o_orderdate>=date '1993-07-01' and o_orderdate< date '1993-07-01' + interval '3' monthgroup by o_...
Github公开事件数据
public_dataset.github_events.dws_overview_by_repo_month where month>='2015-01' and stars is not null and repo_id in(select repo_id from top_10_repos)group by repo_id,month,stars ORDER BY month ASC,repo_id)SELECT tmp.month ...
ALIYUN:EBS:DiskReplicaGroup
ReplicaGroupId RPO:Description:The RPO value set by the consistency group in seconds.Value:Fn:GetAtt:ExtensionResource-RPO SourceRegionId:Description:The ID of the region to which the production site belongs.Value:Fn:...
alicloud_cms_hybrid_monitor_sls_task
by-(Optional)The dimension based on which data is aggregated.This parameter is equivalent to the GROUP BY clause in SQL.See group_by below.statistics-(Optional)The method that is used to aggregate logs imported from Log ...
Sql与OpenSearch查询语法的对比
因此这里反客为主，咱们以SQL执行逻辑的顺序去介绍OpenSearch是如何实现如下的操作单元的，如下是SQL的执行逻辑：(1)FROM(2)ON(3)JOIN(4)WHERE(5)GROUP BY(6)WITH {CUBE|ROLLUP}(7)HAVING(8)SELECT(9)DISTINCT(10)ORDER BY(11)LIMIT。...
列组统计信息
SELECT*FROM check_estimated_rows('SELECT COUNT(*)FROM ndistinct GROUP BY a,b');返回信息如下：estimated|actual-+-1000000|100001(1 row)本次示例中估算行数为1000000行，实际行数为100001行，差距较大。查看执行计划。EXPLAIN ...
SELECT
语法 SELECT setQuantifier selectItem(',' selectItem)*(FROM relation(',' relation)*)(WINDOW windowExpression)(WHERE where=booleanExpression)(GROUP BY groupBy);selectItem 说明 参数值 说明 语句示例*查询所有列。SELECT*FROM ...
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