ALL_TAB_PARTITIONS v16
The ALL_TAB_PARTITIONS view provides information about all of the partitions that reside in the database.
| Name | Type | Description |
|---|---|---|
table_owner | TEXT | Owner of the table in which the partition resides. |
schema_name | TEXT | Name of the schema in which the table resides. |
table_name | TEXT | Name of the table. |
composite | TEXT | YES if the table is subpartitioned, NO if the table isn't subpartitioned. |
partition_name | TEXT | Name of the partition. |
subpartition_count | BIGINT | Number of subpartitions in the partition. |
high_value | TEXT | High-partitioning value specified in the CREATE TABLE statement. |
high_value_length | INTEGER | Length of high-partitioning value. |
partition_position | INTEGER | Ordinal position of this partition. |
tablespace_name | TEXT | Name of the tablespace in which the partition resides. If the tablespace name isn't specified, the default tablespace is PG_DEFAULT. |
pct_free | NUMERIC | Included only for compatibility. Always 0. |
pct_used | NUMERIC | Included only for compatibility. Always 0. |
ini_trans | NUMERIC | Included only for compatibility. Always 0. |
max_trans | NUMERIC | Included only for compatibility. Always 0. |
initial_extent | NUMERIC | Included only for compatibility. Always NULL. |
next_extent | NUMERIC | Included only for compatibility. Always NULL. |
min_extent | NUMERIC | Included only for compatibility. Always 0. |
max_extent | NUMERIC | Included only for compatibility. Always 0. |
pct_increase | NUMERIC | Included only for compatibility. Always 0. |
freelists | NUMERIC | Included only for compatibility. Always NULL. |
freelist_groups | NUMERIC | Included only for compatibility. Always NULL. |
logging | CHARACTER VARYING(7) | Included only for compatibility. Always YES. |
compression | CHARACTER VARYING(8) | Included only for compatibility. Always NONE. |
num_rows | NUMERIC | Same as pg_class.reltuples. |
blocks | INTEGER | Same as pg_class.relpages. |
empty_blocks | NUMERIC | Included only for compatibility. Always NULL. |
avg_space | NUMERIC | Included only for compatibility. Always NULL. |
chain_cnt | NUMERIC | Included only for compatibility. Always NULL. |
avg_row_len | NUMERIC | Included only for compatibility. Always NULL. |
sample_size | NUMERIC | Included only for compatibility. Always NULL. |
last_analyzed | TIMESTAMP WITHOUT TIME ZONE | Included only for compatibility. Always NULL. |
buffer_pool | CHARACTER VARYING(7) | Included only for compatibility. Always NULL. |
global_stats | CHARACTER VARYING(3) | Included only for compatibility. Always YES. |
user_stats | CHARACTER VARYING(3) | Included only for compatibility. Always NO. |
backing_table | REGCLASS | Name of the partition backing table. |