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AUTO_PARTITION_NAME

auto_partition_name

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.

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