mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-12 17:32:32 +00:00
113 lines
2.5 KiB
Markdown
113 lines
2.5 KiB
Markdown
---
|
|
slug: /en/operations/utilities/clickhouse-format
|
|
title: clickhouse-format
|
|
---
|
|
|
|
Allows formatting input queries.
|
|
|
|
Keys:
|
|
|
|
- `--help` or`-h` — Produce help message.
|
|
- `--query` — Format queries of any length and complexity.
|
|
- `--hilite` — Add syntax highlight with ANSI terminal escape sequences.
|
|
- `--oneline` — Format in single line.
|
|
- `--max_line_length` — Format in single line queries with length less than specified.
|
|
- `--comments` — Keep comments in the output.
|
|
- `--quiet` or `-q` — Just check syntax, no output on success.
|
|
- `--multiquery` or `-n` — Allow multiple queries in the same file.
|
|
- `--obfuscate` — Obfuscate instead of formatting.
|
|
- `--seed <string>` — Seed arbitrary string that determines the result of obfuscation.
|
|
- `--backslash` — Add a backslash at the end of each line of the formatted query. Can be useful when you copy a query from web or somewhere else with multiple lines, and want to execute it in command line.
|
|
|
|
## Examples {#examples}
|
|
|
|
1. Formatting a query:
|
|
|
|
```bash
|
|
$ clickhouse-format --query "select number from numbers(10) where number%2 order by number desc;"
|
|
```
|
|
|
|
Result:
|
|
|
|
```bash
|
|
SELECT number
|
|
FROM numbers(10)
|
|
WHERE number % 2
|
|
ORDER BY number DESC
|
|
```
|
|
|
|
2. Highlighting and single line:
|
|
|
|
```bash
|
|
$ clickhouse-format --oneline --hilite <<< "SELECT sum(number) FROM numbers(5);"
|
|
```
|
|
|
|
Result:
|
|
|
|
```sql
|
|
SELECT sum(number) FROM numbers(5)
|
|
```
|
|
|
|
3. Multiqueries:
|
|
|
|
```bash
|
|
$ clickhouse-format -n <<< "SELECT min(number) FROM numbers(5); SELECT max(number) FROM numbers(5);"
|
|
```
|
|
|
|
Result:
|
|
|
|
```
|
|
SELECT min(number)
|
|
FROM numbers(5)
|
|
;
|
|
|
|
SELECT max(number)
|
|
FROM numbers(5)
|
|
;
|
|
|
|
```
|
|
|
|
4. Obfuscating:
|
|
|
|
```bash
|
|
$ clickhouse-format --seed Hello --obfuscate <<< "SELECT cost_first_screen BETWEEN a AND b, CASE WHEN x >= 123 THEN y ELSE NULL END;"
|
|
```
|
|
|
|
Result:
|
|
|
|
```
|
|
SELECT treasury_mammoth_hazelnut BETWEEN nutmeg AND span, CASE WHEN chive >= 116 THEN switching ELSE ANYTHING END;
|
|
```
|
|
|
|
Same query and another seed string:
|
|
|
|
```bash
|
|
$ clickhouse-format --seed World --obfuscate <<< "SELECT cost_first_screen BETWEEN a AND b, CASE WHEN x >= 123 THEN y ELSE NULL END;"
|
|
```
|
|
|
|
Result:
|
|
|
|
```
|
|
SELECT horse_tape_summer BETWEEN folklore AND moccasins, CASE WHEN intestine >= 116 THEN nonconformist ELSE FORESTRY END;
|
|
```
|
|
|
|
5. Adding backslash:
|
|
|
|
```bash
|
|
$ clickhouse-format --backslash <<< "SELECT * FROM (SELECT 1 AS x UNION ALL SELECT 1 UNION DISTINCT SELECT 3);"
|
|
```
|
|
|
|
Result:
|
|
|
|
```
|
|
SELECT * \
|
|
FROM \
|
|
( \
|
|
SELECT 1 AS x \
|
|
UNION ALL \
|
|
SELECT 1 \
|
|
UNION DISTINCT \
|
|
SELECT 3 \
|
|
)
|
|
```
|