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88 lines
2.9 KiB
Markdown
88 lines
2.9 KiB
Markdown
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# Star Schema 基准测试
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编译 dbgen: <https://github.com/vadimtk/ssb-dbgen>
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```bash
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git clone git@github.com:vadimtk/ssb-dbgen.git
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cd ssb-dbgen
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make
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```
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在编译过程中可能会有一些警告，这是正常的。
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将`dbgen`和`dists.dss`放在一个可用容量大于800GB的磁盘中。
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开始生成数据：
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```bash
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./dbgen -s 1000 -T c
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./dbgen -s 1000 -T l
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```
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在ClickHouse中创建表结构：
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``` sql
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CREATE TABLE lineorder (
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LO_ORDERKEY UInt32,
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LO_LINENUMBER UInt8,
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LO_CUSTKEY UInt32,
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LO_PARTKEY UInt32,
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LO_SUPPKEY UInt32,
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LO_ORDERDATE Date,
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LO_ORDERPRIORITY String,
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LO_SHIPPRIORITY UInt8,
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LO_QUANTITY UInt8,
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LO_EXTENDEDPRICE UInt32,
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LO_ORDTOTALPRICE UInt32,
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LO_DISCOUNT UInt8,
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LO_REVENUE UInt32,
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LO_SUPPLYCOST UInt32,
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LO_TAX UInt8,
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LO_COMMITDATE Date,
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LO_SHIPMODE String
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)Engine=MergeTree(LO_ORDERDATE,(LO_ORDERKEY,LO_LINENUMBER,LO_ORDERDATE),8192);
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CREATE TABLE customer (
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C_CUSTKEY UInt32,
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C_NAME String,
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C_ADDRESS String,
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C_CITY String,
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C_NATION String,
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C_REGION String,
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C_PHONE String,
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C_MKTSEGMENT String,
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C_FAKEDATE Date
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)Engine=MergeTree(C_FAKEDATE,(C_CUSTKEY,C_FAKEDATE),8192);
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CREATE TABLE part (
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P_PARTKEY UInt32,
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P_NAME String,
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P_MFGR String,
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P_CATEGORY String,
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P_BRAND String,
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P_COLOR String,
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P_TYPE String,
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P_SIZE UInt8,
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P_CONTAINER String,
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P_FAKEDATE Date
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)Engine=MergeTree(P_FAKEDATE,(P_PARTKEY,P_FAKEDATE),8192);
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CREATE TABLE lineorderd AS lineorder ENGINE = Distributed(perftest_3shards_1replicas, default, lineorder, rand());
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CREATE TABLE customerd AS customer ENGINE = Distributed(perftest_3shards_1replicas, default, customer, rand());
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CREATE TABLE partd AS part ENGINE = Distributed(perftest_3shards_1replicas, default, part, rand());
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```
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如果是在单节点中进行的测试，那么只需要创建对应的MergeTree表。
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如果是在多节点中进行的测试，您需要在配置文件中配置`perftest_3shards_1replicas`集群的信息。
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然后在每个节点中同时创建MergeTree表和Distributed表。
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下载数据（如果您是分布式测试的话将'customer'更改为'customerd'）：
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```bash
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cat customer.tbl | sed 's/$/2000-01-01/' | clickhouse-client --query "INSERT INTO customer FORMAT CSV"
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cat lineorder.tbl | clickhouse-client --query "INSERT INTO lineorder FORMAT CSV"
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```
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[Original article](https://clickhouse.yandex/docs/en/getting_started/example_datasets/star_schema/) <!--hide-->
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