syscompdicts_full
The syscompdicts_full table and the syscompdicts view provide information on all compression dictionaries. The only difference between the table and the view is that, for security purposes, the view does not contain the dict_dictionary column.
Only user informix can retrieve information from the syscompdicts_full table. The syscompdicts view is not restricted to user informix.
The following table shows the information that the syscompdicts_full table and the syscompdicts view provide for each compression dictionary.
Column | Type | Description |
---|---|---|
dict_partnum | integer | Partition number to which the compression dictionary applies |
dict_code_version | integer | Version of the code that is creating the compression
dictionary
|
dict_dbsnum | integer | Number of the dbspace that the dictionary resides in |
dict_create_timestamp | integer | Timestamp that shows when the dictionary was created |
dict_create_loguniqid | integer | Unique ID for the logical log that was active when the dictionary was created |
dict_create_logpos | integer | Position within the logical log when the dictionary was created |
dict_drop_timestamp | integer | Timestamp that shows when the dictionary was dropped. |
dict_drop_loguniqid | integer | Unique ID for the logical log that was created when the dictionary was dropped. |
dict_drop_logpos | integer | Position within the logical log when the dictionary was dropped. |
dict_dictionary | byte | Compression dictionary binary object This column is not included in the syscompdicts view. |
Sample syscompdicts information
A row of information in the syscompdicts view could displays columns containing this information:
dict_partnum 1048939 dict_code_version 1 dict_dbsnum 1 dict_create_times+ 1231357656 dict_create_logun+ 11 dict_create_logpos 1695768 dict_drop_timesta+ 0 dict_drop_loguniq+ 0 dict_drop_logpos 0
You can use an UNLOAD statement to unload the compression dictionary to a compression dictionary file, as follows:
UNLOAD TO 'compression_dictionary_file'
SELECT * FROM sysmaster:syscompdicts_full;