gp_distribution_policy
gp_distribution_policy#
The gp_distribution_policy table contains information about OushuDB tables and their policy for distributing table data across the segments. This table is not globally shared, meaning each database has its own copy of this table.
Table 1. pg_catalog.gp_distribution_policy
column |
type |
references |
description |
|---|---|---|---|
|
oid |
pg_class_internal.oid |
The table object identifier (OID). |
|
smallint[] |
pg_attribute.attnum |
The column number(s) of the distribution column(s). |
|
integer |
Number of hash buckets used in creating a hash-distributed table or for external table intermediate processing. The number of buckets also affects how many virtual segment are created when processing data. |