更新时间:2024-08-20 GMT+08:00
创建GDS外表并导入TPC-H数据
本文介绍如何通过GDS外表导入TPC-H 1000x数据,表1列出了TPC-H测试数据集中的表数据行数。
![](https://support.huaweicloud.com/intl/zh-cn/pwp-dws/public_sys-resources/notice_3.0-zh-cn.png)
TPC-DS请跳过本章节。
表数据行数
操作步骤
- 使用gsql连接DWS成功后,执行以下命令创建目标表(8张表)。
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DROP TABLE IF EXISTS region; CREATE TABLE region ( R_REGIONKEY INT NOT NULL, R_NAME CHAR(25) NOT NULL, R_COMMENT VARCHAR(152) ) with (orientation = column) distribute by replication; DROP TABLE IF EXISTS nation; CREATE TABLE nation ( N_NATIONKEY INT NOT NULL, N_NAME CHAR(25) NOT NULL, N_REGIONKEY INT NOT NULL, N_COMMENT VARCHAR(152) ) with (orientation = column) distribute by replication; DROP TABLE IF EXISTS supplier; CREATE TABLE supplier ( S_SUPPKEY INT NOT NULL, S_NAME CHAR(25) NOT NULL, S_ADDRESS VARCHAR(40) NOT NULL, S_NATIONKEY INT NOT NULL, S_PHONE CHAR(15) NOT NULL, S_ACCTBAL DECIMAL(15,2) NOT NULL, S_COMMENT VARCHAR(101) NOT NULL ) with (orientation = column) distribute by hash(S_SUPPKEY); DROP TABLE IF EXISTS customer; CREATE TABLE customer ( C_CUSTKEY INT NOT NULL, C_NAME VARCHAR(25) NOT NULL, C_ADDRESS VARCHAR(40) NOT NULL, C_NATIONKEY INT NOT NULL, C_PHONE CHAR(15) NOT NULL, C_ACCTBAL DECIMAL(15,2) NOT NULL, C_MKTSEGMENT CHAR(10) NOT NULL, C_COMMENT VARCHAR(117) NOT NULL ) with (orientation = column) distribute by hash(C_CUSTKEY); DROP TABLE IF EXISTS part; CREATE TABLE part ( P_PARTKEY INT NOT NULL, P_NAME VARCHAR(55) NOT NULL, P_MFGR CHAR(25) NOT NULL, P_BRAND CHAR(10) NOT NULL, P_TYPE VARCHAR(25) NOT NULL, P_SIZE INT NOT NULL, P_CONTAINER CHAR(10) NOT NULL, P_RETAILPRICE DECIMAL(15,2) NOT NULL, P_COMMENT VARCHAR(23) NOT NULL ) with (orientation = column) distribute by hash(P_PARTKEY); DROP TABLE IF EXISTS partsupp; CREATE TABLE partsupp ( PS_PARTKEY INT NOT NULL, PS_SUPPKEY INT NOT NULL, PS_AVAILQTY INT NOT NULL, PS_SUPPLYCOST DECIMAL(15,2) NOT NULL, PS_COMMENT VARCHAR(199) NOT NULL ) with (orientation = column) distribute by hash(PS_PARTKEY); DROP TABLE IF EXISTS orders; CREATE TABLE orders ( O_ORDERKEY BIGINT NOT NULL, O_CUSTKEY INT NOT NULL, O_ORDERSTATUS CHAR(1) NOT NULL, O_TOTALPRICE DECIMAL(15,2) NOT NULL, O_ORDERDATE DATE NOT NULL, O_ORDERPRIORITY CHAR(15) NOT NULL, O_CLERK CHAR(15) NOT NULL, O_SHIPPRIORITY INT NOT NULL, O_COMMENT VARCHAR(79) NOT NULL ) with (orientation = column) distribute by hash(O_ORDERKEY) PARTITION BY RANGE(O_ORDERDATE) ( PARTITION O_ORDERDATE_1 VALUES LESS THAN('1993-01-01 00:00:00'), PARTITION O_ORDERDATE_2 VALUES LESS THAN('1994-01-01 00:00:00'), PARTITION O_ORDERDATE_3 VALUES LESS THAN('1995-01-01 00:00:00'), PARTITION O_ORDERDATE_4 VALUES LESS THAN('1996-01-01 00:00:00'), PARTITION O_ORDERDATE_5 VALUES LESS THAN('1997-01-01 00:00:00'), PARTITION O_ORDERDATE_6 VALUES LESS THAN('1998-01-01 00:00:00'), PARTITION O_ORDERDATE_7 VALUES LESS THAN('1999-01-01 00:00:00') ); DROP TABLE IF EXISTS lineitem; CREATE TABLE lineitem ( L_ORDERKEY BIGINT NOT NULL, L_PARTKEY INT NOT NULL, L_SUPPKEY INT NOT NULL, L_LINENUMBER INT NOT NULL, L_QUANTITY DECIMAL(15,2) NOT NULL, L_EXTENDEDPRICE DECIMAL(15,2) NOT NULL, L_DISCOUNT DECIMAL(15,2) NOT NULL, L_TAX DECIMAL(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_SHIPINSTRUCT CHAR(25) NOT NULL, L_SHIPMODE CHAR(10) NOT NULL, L_COMMENT VARCHAR(44) NOT NULL ) with (orientation = column) distribute by hash(L_ORDERKEY) PARTITION BY RANGE(L_SHIPDATE) ( PARTITION L_SHIPDATE_1 VALUES LESS THAN('1993-01-01 00:00:00'), PARTITION L_SHIPDATE_2 VALUES LESS THAN('1994-01-01 00:00:00'), PARTITION L_SHIPDATE_3 VALUES LESS THAN('1995-01-01 00:00:00'), PARTITION L_SHIPDATE_4 VALUES LESS THAN('1996-01-01 00:00:00'), PARTITION L_SHIPDATE_5 VALUES LESS THAN('1997-01-01 00:00:00'), PARTITION L_SHIPDATE_6 VALUES LESS THAN('1998-01-01 00:00:00'), PARTITION L_SHIPDATE_7 VALUES LESS THAN('1999-01-01 00:00:00') );
- 执行以下命令创建GDS外表(8张表)。
以下每个外表的“gsfs://192.168.0.90:500x/xxx | gsfs://192.168.0.90:500x/xxx”中的IP地址和端口,请替换成安装和启动GDS中的对应的GDS的监听IP和端口。如启动两个GDS,则使用“|”区分。如果启动多个GDS,需要将所有GDS的监听IP和端口配置到外表中。
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DROP FOREIGN TABLE IF EXISTS region_load; CREATE FOREIGN TABLE region_load ( R_REGIONKEY INT, R_NAME CHAR(25), R_COMMENT VARCHAR(152) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/region* | gsfs://192.168.0.90:5001/region*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS nation_load; CREATE FOREIGN TABLE nation_load ( N_NATIONKEY INT, N_NAME CHAR(25), N_REGIONKEY INT, N_COMMENT VARCHAR(152) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/nation* | gsfs://192.168.0.90:5001/nation*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS supplier_load; CREATE FOREIGN TABLE supplier_load ( S_SUPPKEY INT, S_NAME CHAR(25), S_ADDRESS VARCHAR(40), S_NATIONKEY INT, S_PHONE CHAR(15), S_ACCTBAL DECIMAL(15,2), S_COMMENT VARCHAR(101) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/supplier* | gsfs://192.168.0.90:5001/supplier*', format 'text', delimiter '|', encoding 'utf8', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS customer_load; CREATE FOREIGN TABLE customer_load ( C_CUSTKEY INT, C_NAME VARCHAR(25), C_ADDRESS VARCHAR(40), C_NATIONKEY INT, C_PHONE CHAR(15), C_ACCTBAL DECIMAL(15,2), C_MKTSEGMENT CHAR(10), C_COMMENT VARCHAR(117) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/customer* | gsfs://192.168.0.90:5001/customer*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS part_load; CREATE FOREIGN TABLE part_load ( P_PARTKEY INT, P_NAME VARCHAR(55), P_MFGR CHAR(25), P_BRAND CHAR(10), P_TYPE VARCHAR(25), P_SIZE INT, P_CONTAINER CHAR(10), P_RETAILPRICE DECIMAL(15,2), P_COMMENT VARCHAR(23) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/part.* | gsfs://192.168.0.90:5001/part.*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS partsupp_load; CREATE FOREIGN TABLE partsupp_load ( PS_PARTKEY INT, PS_SUPPKEY INT, PS_AVAILQTY INT, PS_SUPPLYCOST DECIMAL(15,2), PS_COMMENT VARCHAR(199) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/partsupp* | gsfs://192.168.0.90:5001/partsupp*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS orders_load; CREATE FOREIGN TABLE orders_load ( O_ORDERKEY BIGINT, O_CUSTKEY INT, O_ORDERSTATUS CHAR(1), O_TOTALPRICE DECIMAL(15,2), O_ORDERDATE DATE, O_ORDERPRIORITY CHAR(15), O_CLERK CHAR(15), O_SHIPPRIORITY INT, O_COMMENT VARCHAR(79) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/orders* | gsfs://192.168.0.90:5001/orders*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' ); DROP FOREIGN TABLE IF EXISTS lineitem_load; CREATE FOREIGN TABLE lineitem_load ( L_ORDERKEY BIGINT, L_PARTKEY INT, L_SUPPKEY INT, L_LINENUMBER INT, L_QUANTITY DECIMAL(15,2), L_EXTENDEDPRICE DECIMAL(15,2), L_DISCOUNT DECIMAL(15,2), L_TAX DECIMAL(15,2), L_RETURNFLAG CHAR(1), L_LINESTATUS CHAR(1), L_SHIPDATE DATE, L_COMMITDATE DATE, L_RECEIPTDATE DATE, L_SHIPINSTRUCT CHAR(25), L_SHIPMODE CHAR(10), L_COMMENT VARCHAR(44) ) SERVER gsmpp_server OPTIONS(location 'gsfs://192.168.0.90:5000/lineitem* | gsfs://192.168.0.90:5001/lineitem*', format 'text', delimiter '|', encoding 'utf8', FILL_MISSING_FIELDS 'true', IGNORE_EXTRA_DATA 'true', mode 'Normal' );
- 执行以下命令导入数据。
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INSERT INTO region SELECT * FROM region_load; INSERT INTO nation SELECT * FROM nation_load; INSERT INTO supplier SELECT * FROM supplier_load; INSERT INTO customer SELECT * FROM customer_load; INSERT INTO part SELECT * FROM part_load; INSERT INTO partsupp SELECT * FROM partsupp_load; INSERT INTO orders SELECT * FROM orders_load; INSERT INTO lineitem SELECT * FROM lineitem_load;
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