Updated on 2024-06-03 GMT+08:00

MY_TAB_SUBPARTITIONS

MY_TAB_SUBPARTITIONS displays information about all level-2 partitioned tables accessible to the current user. This view can be accessed by all users. Only the information about the current user can be viewed. This view exists in both PG_CATALOG and SYS schema.

Table 1 MY_TAB_SUBPARTITIONS columns

Name

Type

Description

table_owner

character varying(64)

Table owner.

schema

character varying(64)

Schema name.

table_name

character varying(64)

Table name.

partition_name

character varying(64)

Partition name.

subpartition_name

character varying(64)

Name of a level-2 partition.

high_value

text

Boundary value expression in a level-2 partition.

high_value_length

integer

Length of the boundary value expression in level-2 partition.

partition_position

numeric

Position of the partition in the table.

subpartition_position

numeric

Position of the level-2 partition in the partition.

tablespace_name

name

Name of the tablespace where the level-2 partition is located.

pct_free

numeric

Percentage of minimum available space in a block.

pct_used

numeric

Not supported. Its value is NULL.

ini_trans

numeric

Initial number of transactions.

max_trans

numeric

Maximum number of transactions.

initial_extent

numeric

Not supported. Its value is NULL.

next_extent

numeric

Not supported. Its value is NULL.

min_extent

numeric

Not supported. Its value is NULL.

max_extent

numeric

Not supported. Its value is NULL.

max_size

numeric

Not supported. Its value is NULL.

pct_increase

numeric

Not supported. Its value is NULL.

freelists

numeric

Not supported. Its value is NULL.

freelist_groups

numeric

Not supported. Its value is NULL.

logging

character varying(7)

Specifies whether changes to a table are logged.
  • YES
  • NO

compression

character varying(8)

Specifies whether a subpartition is compressed. Value range: ENABLED and DISABLED.

compress_for

character varying(30)

Not supported. Its value is NULL.

num_rows

numeric

Not supported. Its value is NULL.

blocks

numeric

Not supported. Its value is NULL.

empty_blocks

numeric

Not supported. Its value is NULL.

avg_space

numeric

Not supported. Its value is NULL.

chain_cnt

numeric

Not supported. Its value is NULL.

avg_row_len

numeric

Not supported. Its value is NULL.

sample_size

numeric

Not supported. Its value is NULL.

last_analyzed

timestamp with time zone

Date when the table was last analyzed. Database restart is not supported. Otherwise, data loss will occur.

buffer_pool

character varying(7)

Buffer pool of a level-2 partition.
  • DEFAULT
  • KEEP
  • RECYCLE
  • NULL

flash_cache

character varying(7)

Not supported. Its value is NULL.

cell_flash_cache

character varying(7)

Not supported. Its value is NULL.

global_stats

character varying(3)

Not supported. Its value is NULL.

user_stats

character varying(3)

Not supported. Its value is NULL.

interval

character varying(3)

Specifies whether the partition is in the interval section of an interval partitioned table (YES) or whether the partition is in the range section (NO).

segment_created

character varying(3)

Specifies whether the level-2 partition segment of the table has been created.
  • YES: created.
  • NO: not created.
  • N/A: The table does not have level-2 partitions.

indexing

character varying(3)

Not supported. Its value is NULL.

read_only

character varying(5)

Not supported. Its value is NULL.

inmemory

character varying(8)

Not supported. Its value is NULL.

inmemory_priority

character varying(8)

Not supported. Its value is NULL.

inmemory_distribute

character varying(15)

Not supported. Its value is NULL.

inmemory_compression

character varying(17)

Not supported. Its value is NULL.

inmemory_duplicate

character varying(13)

Not supported. Its value is NULL.

inmemory_service

character varying(12)

Not supported. Its value is NULL.

inmemory_service_name

character varying(1000)

Not supported. Its value is NULL.

cellmemory

character varying(24)

Not supported. Its value is NULL.

memoptimize_read

character varying(8)

Not supported. Its value is NULL.

memoptimize_write

character varying(8)

Not supported. Its value is NULL.