mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-17 05:03:20 +00:00

* CLICKHOUSE-4063: less manual html @ index.md

* CLICKHOUSE-4063: recommend markdown="1" in README.md

* CLICKHOUSE-4003: manually purge custom.css for now

* CLICKHOUSE-4064: expand <details> before any print (including to pdf)

* CLICKHOUSE-3927: rearrange interfaces/formats.md a bit

* CLICKHOUSE-3306: add few http headers

* Remove copy-paste introduced in #3392

* Hopefully better chinese fonts #3392

* get rid of tabs @ custom.css

* Apply comments and patch from #3384

* Add jdbc.md to ToC and some translation, though it still looks badly incomplete

* minor punctuation

* Add some backlinks to official website from mirrors that just blindly take markdown sources

* Do not make fonts extra light

* find . -name '*.md' -type f | xargs -I{} perl -pi -e 's//g' {}

* find . -name '*.md' -type f | xargs -I{} perl -pi -e 's/ sql/g' {}

* Remove outdated stuff from roadmap.md

* Not so light font on front page too

* Refactor Chinese formats.md to match recent changes in other languages

2018-10-16 13:47:17 +03:00

3.3 KiB

Raw Blame History

Схема «Звезда»

Компилирование dbgen: https://github.com/vadimtk/ssb-dbgen

git clone git@github.com:vadimtk/ssb-dbgen.git
cd ssb-dbgen
make

В процессе будет некоторое количество предупреждений. Это нормально.

Разместите dbgen и dists.dss в какое-либо место с 800Гб свободного дискового пространства.

Генерация данных:

./dbgen -s 1000 -T c
./dbgen -s 1000 -T l

Создание таблиц в ClickHouse:

CREATE TABLE lineorder (
        LO_ORDERKEY             UInt32,
        LO_LINENUMBER           UInt8,
        LO_CUSTKEY              UInt32,
        LO_PARTKEY              UInt32,
        LO_SUPPKEY              UInt32,
        LO_ORDERDATE            Date,
        LO_ORDERPRIORITY        String,
        LO_SHIPPRIORITY         UInt8,
        LO_QUANTITY             UInt8,
        LO_EXTENDEDPRICE        UInt32,
        LO_ORDTOTALPRICE        UInt32,
        LO_DISCOUNT             UInt8,
        LO_REVENUE              UInt32,
        LO_SUPPLYCOST           UInt32,
        LO_TAX                  UInt8,
        LO_COMMITDATE           Date,
        LO_SHIPMODE             String
)Engine=MergeTree(LO_ORDERDATE,(LO_ORDERKEY,LO_LINENUMBER,LO_ORDERDATE),8192);

CREATE TABLE customer (
        C_CUSTKEY       UInt32,
        C_NAME          String,
        C_ADDRESS       String,
        C_CITY          String,
        C_NATION        String,
        C_REGION        String,
        C_PHONE         String,
        C_MKTSEGMENT    String,
        C_FAKEDATE      Date
)Engine=MergeTree(C_FAKEDATE,(C_CUSTKEY,C_FAKEDATE),8192);

CREATE TABLE part (
        P_PARTKEY       UInt32,
        P_NAME          String,
        P_MFGR          String,
        P_CATEGORY      String,
        P_BRAND         String,
        P_COLOR         String,
        P_TYPE          String,
        P_SIZE          UInt8,
        P_CONTAINER     String,
        P_FAKEDATE      Date
)Engine=MergeTree(P_FAKEDATE,(P_PARTKEY,P_FAKEDATE),8192);

CREATE TABLE lineorderd AS lineorder ENGINE = Distributed(perftest_3shards_1replicas, default, lineorder, rand());
CREATE TABLE customerd AS customer ENGINE = Distributed(perftest_3shards_1replicas, default, customer, rand());
CREATE TABLE partd AS part ENGINE = Distributed(perftest_3shards_1replicas, default, part, rand());

Для тестирования на одном сервере, используете просто таблицы типа MergeTree. Для распределённого тестирования, нужно настроить кластер perftest_3shards_1replicas в конфигурационном файле. Далее создать MergeTree таблицы на каждом сервере и Distributed таблицу поверх них.

Загрузка данных (нужно поменять customer на customerd в распределённом варианте):

cat customer.tbl | sed 's/$/2000-01-01/' | clickhouse-client --query "INSERT INTO customer FORMAT CSV"
cat lineorder.tbl | clickhouse-client --query "INSERT INTO lineorder FORMAT CSV"

Оригинальная статья

3.3 KiB Raw Blame History Unescape Escape

Схема «Звезда»

3.3 KiB

Raw Blame History