Tablestore计算下推
index=[L_SHIPMODE,L_TAX,L_COMMITDATE,L_EXTENDEDPRICE,L_ORDERKEY,L_LINESTATUS,L_RETURNFLAG,L_RECEIPTDATE,L_PARTKEY,L_LINENUMBER,L_SHIPDATE,L_SHIPINSTRUCT,L_SUPPKEY,L_DISCOUNT,L_COMMENT,L_QUANTITY]}],aggregationLists=...
并行查询使用示例
price,Sum(l_extendedprice*(1-l_discount)*(1+l_tax))AS sum_charge,Avg(l_quantity)AS avg_qty,Avg(l_extendedprice)AS avg_price,Avg(l_discount)AS avg_disc,Count(*)AS count_order FROM lineitem WHERE l_shipdate...
TPC-H测试集
SQL1 select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
查询数据
Q1 select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
数据集信息和示例查询
Q1 select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
场景化建表调优指南
L_TAX DECIMAL(15,2)NOT NULL,L_RETURNFLAG TEXT NOT NULL,L_LINESTATUS TEXT NOT NULL,L_SHIPDATE TIMESTAMPTZ NOT NULL,L_COMMITDATE TIMESTAMPTZ NOT NULL,L_RECEIPTDATE TIMESTAMPTZ NOT NULL,L_SHIPINSTRUCT TEXT NOT NULL,L_SHIPMODE...
高性能版Spark全密态计算引擎性能测试报告
SELECT l_returnflag,l_linestatus,sum(l_quantity)AS sum_qty,sum(l_extendedprice)AS sum_base_price,sum(l_extendedprice*(1-l_discount))AS sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))AS sum_charge,avg(l_...
支持的文件格式
CREATE EXTERNAL TABLE IF NOT EXISTS test_avro(L_ORDERKEY INT,L_PARTKEY INT,L_SUPPKEY INT,L_LINENUMBER INT,L_QUANTITY DOUBLE,L_EXTENDEDPRICE DOUBLE,L_DISCOUNT DOUBLE,L_TAX DOUBLE,L_RETURNFLAG STRING,L_LINESTATUS STRING,L_...
使用实时物化视图加速带可变参数的查询
l_tax numeric not null,l_returnflag"char"not null,l_linestatus"char"not null,l_shipdate date not null,l_commitdate date not null,l_receiptdate date not null,l_shipinstruct char(25)not null,l_shipmode char(10)not null,l_...
Serverless模式数据共享性能测试
Q1 select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
7.0版TPC-H性能测试
L_TAX decimal64 NOT NULL,L_RETURNFLAG"char"NOT NULL,L_LINESTATUS"char"NOT NULL,L_SHIPDATE DATE NOT NULL,L_COMMITDATE DATE NOT NULL,L_RECEIPTDATE DATE NOT NULL,L_SHIPINSTRUCT CHAR(25)NOT NULL,L_SHIPMODE CHAR(10)NOT NULL,L_...
数据导入场景
'L_LINENUMBER':int(data[3]),'L_QUANTITY':float(data[4]),'L_EXTENDEDPRICE':float(data[5]),'L_DISCOUNT':float(data[6]),'L_TAX':float(data[7]),'L_RETURNFLAG':data[8],'L_LINESTATUS':data[9],'L_SHIPDATE':data[10],'L_COMMITDATE'...
6.0版TPC-H性能测试
select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
TPC-H Benchmark
l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_quantity)as avg_qty,avg(l_...
构建测试表
orderkey),KEY idx_l_partkey(l_partkey),KEY idx_l_receiptdate(l_receiptdate),KEY idx_l_returnflag(l_returnflag),KEY idx_l_shipdate(l_shipdate),KEY idx_l_shipinstruct(l_shipinstruct),KEY idx_l_shipmode(l_shipmode),KEY idx_l_...
使用ODPS Foreign Table访问MaxCompute数据
TPC-H Q1 select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg...
查询改写功能
示例如下：原查询语句如下：SELECT l.shipmode,l.extendedprice*(1-l.discount)AS disc_price FROM orders AS o,lineitem AS l WHERE o.orderkey=l.orderkey AND l.shipmode in('REG AIR','TRUCK')AND l.commitdate<l.receiptdate AND l....
如何使用表分区？
CREATE TABLE LINEITEM(L_ORDERKEY BIGINT NOT NULL,L_PARTKEY BIGINT NOT NULL,L_SUPPKEY BIGINT NOT NULL,L_LINENUMBER INTEGER,L_QUANTITY FLOAT8,L_EXTENDEDPRICE FLOAT8,L_DISCOUNT FLOAT8,L_TAX FLOAT8,L_RETURNFLAG CHAR(1),L_...
测试方案介绍
L_TAX DECIMAL(15,2)NOT NULL,L_RETURNFLAG text NOT NULL,L_LINESTATUS text NOT NULL,L_SHIPDATE date NOT NULL,L_COMMITDATE date NOT NULL,L_RECEIPTDATE date NOT NULL,L_SHIPINSTRUCT text NOT NULL,L_SHIPMODE text NOT NULL,L_...
使用Impala或Presto查询JindoFS上的数据
例如，原有HDFS上的建表语句如下：Create external table lineitem(L_ORDERKEY INT,L_PARTKEY INT,L_SUPPKEY INT,L_LINENUMBER INT,L_QUANTITY DOUBLE,L_EXTENDEDPRICE DOUBLE,L_DISCOUNT DOUBLE,L_TAX DOUBLE,L_RETURNFLAG STRING,L_...
迁移ClickHouse至Hologres
tax decimal(15,2),l_returnflag LowCardinality(String),l_linestatus LowCardinality(String),l_shipdate Date,l_commitdate Date,l_receiptdate Date,l_shipinstruct LowCardinality(String),l_shipmode LowCardinality(String),l_...
测试方法
CREATE EXTERNAL TABLE tpch_1000x_orc.lineitem(l_orderkey bigint,l_partkey bigint,l_suppkey bigint,l_linenumber int,l_quantity double,l_extendedprice double,l_discount double,l_tax double,l_returnflag string,l_linestatus ...
ROLLUP的并行加速
select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
HINT简介
例如：SELECT/*+_l_operation_timeout_(1000),_l_force_index_('idx1')*/*from test;l_force_index_STRING 强制选择索引。仅支持SELECT。说明_l_force_index_参数不能与_l_ignore_index_参数同时使用。l_ignore_index_不涉及 忽略索引，不...
多版本数据管理
返回结果如下：+-+-+-+-+-+|c1|c2|c3|c2_l_ts|c3_l_ts|+-+-+-+-+-+|1|null|22|null|2001|1|1|11|1000|1000|2|6|null|2006|null|2|5|null|2005|null|+-+-+-+-+-+示例五：由于创建表时设置版本属性仅保留5个版本的数据，所以尽管指定_l_...
Presto
LINEITEM表 create external table lineitem(l_orderkey integer,l_partkey integer,l_suppkey integer,l_linenumber integer,l_quantity decimal(15,2),l_extendedprice decimal(15,2),l_discount decimal(15,2),l_tax decimal(15,2),l_...
Dynamic Join Filter
2)NOT NULL,L_DISCOUNT NUMERIC(15,2)NOT NULL,L_TAX NUMERIC(15,2)NOT NULL,L_RETURNFLAG CHAR(1)NOT NULL,L_LINESTATUS CHAR(1)NOT NULL,L_SHIPDATE DATE NOT NULL,L_COMMITDATE DATE NOT NULL,L_RECEIPTDATE DATE NOT NULL,L_...
L字管道
在画布左侧组件列表上方，输入 L字管道，找到该组件，然后将组件拖拽到中间画布。有关组件添加的更多信息，请参见 添加组件。步骤二：配置样式 调整组件在页面中的最终位置。有关组件通用样式配置，请参见 样式配置。步骤三：配置交互动作 ...
使用EMR
CREATE EXTERNAL TABLE lineitem(l_orderkey bigint,l_linenumber bigint,l_receiptdate string,l_returnflag string,l_tax double,l_shipmode string,l_suppkey bigint,l_shipdate string,l_commitdate string,l_partkey bigint,l_...
物理专线网络性能测试方法
l 300-m 1400#第五个ECS实例 netperf-H 192.168.100.1-p 11261-t UDP_STREAM-l 300-m 1400#第六个ECS实例 netperf-H 192.168.100.1-p 11262-t UDP_STREAM-l 300-m 1400#第七个ECS实例 netperf-H 192.168.100.1-p 11263-t UDP_STREAM-l 300-...
DATASOURCE:VPC:PublicIpAddressPools
ChinaTelecom:\ \ China Telecom ChinaUnicom:China Unicom ChinaMobile:China Mobile ChinaTelecom_L2:\ \ China Telecom L2 ChinaUnicom_L2:China Unicom L2 ChinaMobile_L2:China Mobile\ \ L2 If your services are deployed in China ...
Spark使用OSS Select加速数据查询
本文介绍如何配置Spark使用OSS Select加速数据查询，以及使用OSS Select查询数据的优势。背景信息 本文所有操作基于 Apache Impala(CDH6)处理OSS数据 搭建的CDH6集群及配置。说明 文中所有${} 的内容为环境变量，请根据您实际的环境修改。...
Broker Load
l_tax,l_returnflag,l_linestatus,l_shipdate,l_commitdate,l_receiptdate,l_shipinstruct,l_shipmode,l_comment))查看导入任务状态 Broker Load导入是异步的，您可以在 SHOW LOAD 命令中指定Label来查询对应导入作业的执行状态。...
MTable聚合
import numpy as np import pandas as pd from pyalink.alink import*df_data=pd.DataFrame([["a1","11L",2.2],["a1","12L",2.0],["a2","11L",2.0],["a2","12L",2.0],["a3","12L",2.0],["a3","13L",2.0],["a4","13L",2.0],["a4","14L",2.0]...
使用列索引加速ETL
select l_returnflag,l_linestatus,sum(l_quantity)as sum_qty,sum(l_extendedprice)as sum_base_price,sum(l_extendedprice*(1-l_discount))as sum_disc_price,sum(l_extendedprice*(1-l_discount)*(1+l_tax))as sum_charge,avg(l_...
MTable展开
import numpy as np import pandas as pd from pyalink.alink import*df_data=pd.DataFrame([["a1","11L",2.2],["a1","12L",2.0],["a2","11L",2.0],["a2","12L",2.0],["a3","12L",2.0],["a3","13L",2.0],["a4","13L",2.0],["a4","14L",2.0]...
智能索引推荐
0")HashAgg($f0="SUM(l_extendedprice)")Filter(condition="l_quantity<$16*f17w0$o0")SortWindow(p_partkey="p_partkey",l_partkey="l_partkey",l_quantity="l_quantity",l_extendedprice="l_extendedprice",$16="$16",f5w0$o0="window#0...
电子罗盘
solutions/eduk1_demo/drivers/sensor/drv_mag_honeywell_qmc5883l.c/solutions/eduk1_demo/drivers/sensor/drv_mag_honeywell_qmc5883l.h#define QMC5883L_CONFIG2 0x09#define QMC5883L_CONFIG2 0x0a static qmc5883l_write_register...
执行计划管理
`l_extendedprice`,`l_discount`,`l_tax`,`l_returnflag`,`l_linestatus`,`l_shipdate`,`l_commitdate`,`l_receiptdate`,`l_shipinstruct`,`l_shipmode`,`l_comment` FROM `lineitem` AS `lineitem`",parallel=true)|LogicalView(tables="...
执行计划管理
`l_linenumber`,`l_quantity`,`l_extendedprice`,`l_discount`,`l_tax`,`l_returnflag`,`l_linestatus`,`l_shipdate`,`l_commitdate`,`l_receiptdate`,`l_shipinstruct`,`l_shipmode`,`l_comment` FROM `lineitem` AS `lineitem`",parallel...
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