AUTO_PARTITION_NAME
tip
Supported since Apache Doris 2.1.6
Description
Syntax
VARCHAR AUTO_PARTITION_NAME('RANGE', 'VARCHAR unit', DATETIME datetime)
VARCHAR AUTO_PARTITION_NAME('LIST', VARCHAR,...)
Generate datetime partition names by unit following RANGE's partition name rules
Convert strings to partition names following LIST's partition name rules
The datetime parameter is a legal date expression.
The unit parameter is the time interval you want, the available values are: [second, minute, hour, day, month, year].
If unit does not match one of these options, a syntax error will be returned.
Supported since Doris 2.1.6
Example
mysql> select auto_partition_name('range', 'years', '123');
ERROR 1105 (HY000): errCode = 2, detailMessage = range auto_partition_name must accept year|month|day|hour|minute|second for 2nd argument
mysql> select auto_partition_name('range', 'year', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'year', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20220101000000 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('range', 'month', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'month', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20221201000000 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('range', 'day', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'day', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20221212000000 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('range', 'hour', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'hour', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20221212190000 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('range', 'minute', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'minute', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20221212192000 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('range', 'second', '2022-12-12 19:20:30');
+---------------------------------------------------------------+
| auto_partition_name('range', 'second', '2022-12-12 19:20:30') |
+---------------------------------------------------------------+
| p20221212192030 |
+---------------------------------------------------------------+
mysql> select auto_partition_name('list', 'helloworld');
+-------------------------------------------+
| auto_partition_name('list', 'helloworld') |
+-------------------------------------------+
| phelloworld10 |
+-------------------------------------------+
mysql> select auto_partition_name('list', 'hello', 'world');
+-----------------------------------------------+
| auto_partition_name('list', 'hello', 'world') |
+-----------------------------------------------+
| phello5world5 |
+-----------------------------------------------+
mysql> select auto_partition_name('list', "你好");
+------------------------------------+
| auto_partition_name('list', "你好") |
+------------------------------------+
| p4f60597d2 |
+------------------------------------+
Keywords
AUTO_PARTITION_NAME,AUTO,PARTITION,NAME
