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Added description of NYC Taxi dataset (in progress) [#CLICKHOUSE-3].

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Alexey Milovidov 2017-01-30 08:22:15 +03:00
parent 7b2d3bde40
commit a2ab482fa0
1 changed files with 2 additions and 2 deletions
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doc/example_datasets/nyc_taxi.txt
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@ -110,7 +110,7 @@ COPY
```
Dump is created at speed about 50 MB/sec. While creating dump, PostgreSQL reads data from disk at about 28 MB/sec.
Resulting tsv file is 590 612 904 969 bytes.
It takes about 5 hours. Resulting tsv file is 590 612 904 969 bytes.
Create temporary table in ClickHouse:
@ -177,7 +177,7 @@ This table is needed to select better data types for fields, and if possible, ge
time clickhouse-client --query="INSERT INTO trips FORMAT TabSeparated" < trips.tsv
```
Data is read at 112-140 MB/sec. It will took about two hours.
Data is read at 112-140 MB/sec. It will take about two hours.
Loading data into Log table in single thread took