attributeTEXT,

partitions_countINTEGER,

partition_dataBOOLEAN DEFAULT TRUE,

partition_namesTEXT[] DEFAULTNULL,

tablespacesTEXT[] DEFAULTNULL)

partition_namesTEXT[] DEFAULTNULL,

tablespacesTEXT[] DEFAULTNULL)

Performs HASH partitioning for`relation` by integer key`attribute`. The`partitions_count` parameter specifies the number of partitions to create; it cannot be changed afterwards. If`partition_data` is`true` then all the data will be automatically copied from the parent table to partitions. Note that data migration may took a while to finish and the table will be locked until transaction commits. See`partition_table_concurrently()` for a lock-free way to migrate data. Partition creation callback is invoked for each partition if set beforehand (see`set_init_callback()`).