thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-22 15:42:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

CLICKHOUSE-3914 add doc for CASE without ELSE

Browse Source
This commit is contained in:
VadimPE 2018-08-27 12:21:40 +03:00
parent 88f1346be4
commit 83ff0d2721
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
docs/ru/query_language/operators.md
View File

@ -91,11 +91,12 @@
CASE [x]
WHEN a THEN b
[WHEN ... THEN ...]
ELSE c
[ELSE c]
END
```
В случае указания x - функция transform(x, \[a, ...\], \[b, ...\], c). Иначе - multiIf(a, b, ..., c).
При отсутствии секции `ELSE c` значением по умолчанию будет NULL.
## Оператор склеивания строк