操作步骤

1. 生成测试数据。
   1. 请在https://github.com/electrum/tpch-dbgen下载TPCH共用源码。
   2. 请在下载的源码文件中，找到makefile.suite文件，并按照如下内容进行修改，修改完成后进行保存。

      CC      = gcc# Current values for DATABASE are: INFORMIX, DB2, TDAT (Teradata)#                                  SQLSERVER, SYBASE, ORACLE# Current values for MACHINE are:  ATT, DOS, HP, IBM, ICL, MVS,#                                  SGI, SUN, U2200, VMS, LINUX, WIN32# Current values for WORKLOAD are:  TPCHDATABASE= SQLSERVERMACHINE = LINUXWORKLOAD = TPCH

   3. 在源码根目录下，执行下列命令，编译生成TPCH数据工具dbgen。

      make -f makefile.suite

   4. 使用dbgen执行如下命令，生成TPCH数据100G。

      ./dbgen -s 100

2. 登录目标GaussDB(for MySQL)实例，创建目标数据库，并使用如下命令创建TPCH的表。

   CREATE TABLE nation  ( N_NATIONKEY  INTEGER NOT NULL,                       N_NAME       CHAR(25) NOT NULL,                       N_REGIONKEY  INTEGER NOT NULL,                       N_COMMENT    VARCHAR(152));CREATE TABLE region  ( R_REGIONKEY  INTEGER NOT NULL,                       R_NAME       CHAR(25) NOT NULL,                       R_COMMENT    VARCHAR(152));CREATE TABLE part    ( P_PARTKEY     INTEGER 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        INTEGER NOT NULL,                       P_CONTAINER   CHAR(10) NOT NULL,                       P_RETAILPRICE DECIMAL(15,2) NOT NULL,                       P_COMMENT     VARCHAR(23) NOT NULL );CREATE TABLE supplier  ( S_SUPPKEY     INTEGER NOT NULL,                         S_NAME        CHAR(25) NOT NULL,                         S_ADDRESS     VARCHAR(40) NOT NULL,                         S_NATIONKEY   INTEGER NOT NULL,                         S_PHONE       CHAR(15) NOT NULL,                         S_ACCTBAL     DECIMAL(15,2) NOT NULL,                         S_COMMENT     VARCHAR(101) NOT NULL);CREATE TABLE partsupp  ( PS_PARTKEY     INTEGER NOT NULL,                         PS_SUPPKEY     INTEGER NOT NULL,                         PS_AVAILQTY    INTEGER NOT NULL,                         PS_SUPPLYCOST  DECIMAL(15,2)  NOT NULL,                         PS_COMMENT     VARCHAR(199) NOT NULL );CREATE TABLE customer  ( C_CUSTKEY     INTEGER NOT NULL,                         C_NAME        VARCHAR(25) NOT NULL,                         C_ADDRESS     VARCHAR(40) NOT NULL,                         C_NATIONKEY   INTEGER 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);CREATE TABLE orders  ( O_ORDERKEY       INTEGER NOT NULL,                       O_CUSTKEY        INTEGER 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   INTEGER NOT NULL,                       O_COMMENT        VARCHAR(79) NOT NULL);CREATE TABLE lineitem ( L_ORDERKEY    INTEGER NOT NULL,                        L_PARTKEY     INTEGER NOT NULL,                        L_SUPPKEY     INTEGER NOT NULL,                        L_LINENUMBER  INTEGER 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);

3. 使用如下命令，将生成的数据导入到TPCH的表中。

   load data INFILE '/path/customer.tbl' INTO TABLE customer FIELDS TERMINATED BY '|';load data INFILE '/path/region.tbl' INTO TABLE region FIELDS TERMINATED BY '|';load data INFILE '/path/nation.tbl' INTO TABLE nation FIELDS TERMINATED BY '|';load data INFILE '/path/supplier.tbl' INTO TABLE supplier FIELDS TERMINATED BY '|';load data INFILE '/path/part.tbl' INTO TABLE part FIELDS TERMINATED BY '|';load data INFILE '/path/partsupp.tbl' INTO TABLE partsupp FIELDS TERMINATED BY '|';load data INFILE '/path/orders.tbl' INTO TABLE orders FIELDS TERMINATED BY '|';load data INFILE '/path/lineitem.tbl' INTO TABLE lineitem FIELDS TERMINATED BY '|';

4. 创建TPCH表的索引。

   alter table region add primary key (r_regionkey);alter table nation add primary key (n_nationkey);alter table part add primary key (p_partkey);alter table supplier add primary key (s_suppkey);alter table partsupp add primary key (ps_partkey,ps_suppkey);alter table customer add primary key (c_custkey);alter table lineitem add primary key (l_orderkey,l_linenumber);alter table orders add primary key (o_orderkey);

5. 请在https://github.com/dragansah/tpch-dbgen/tree/master/tpch-queries获取TPCH 22个查询query语句，并进行相应操作。