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v3.1

Documentation:v3.1

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PG_DESCRIPTION

PG_DESCRIPTION records optional descriptions (comments) for each database object. Descriptions of many built-in system objects are provided in the initial contents of PG_DESCRIPTION.

See also PG_SHDESCRIPTION, which provides a similar function for descriptions involving objects that are shared across MogDB.

Table 1 PG_DESCRIPTION columns

Name Type Reference Description
objoid oid Any OID column OID of the object that this description pertains to
classoid oid PG_CLASS.oid OID of the system catalog where the object appears
objsubid integer - Column number for a comment on a table column (objoid and classoid refer to the table itself); 0 for all other object types
description text - Arbitrary text that serves as the description of the object
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