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xy720 7a0c7f45b2 Add English documents for Doris (#1719 )

The english documents is translated by machine. So It may has some mistake.
We will fix them later

2019-08-29 13:47:15 +08:00

lower

Description '35;'35;' 35; Syntax

'INT lower (WARCHAR str)'

Convert all strings in parameters to lowercase

'35;'35; example

mysql> SELECT lower("AbC123");
+-----------------+
1.A/AC.109/2002/L.1;
+-----------------+
1244; abc123
+-----------------+

##keyword LOWER