Gbase 8C access authority query function (I)

GBase 8c In the database ,DDL Class permissions ALTER、DROP、COMMENT、INDEX、VACUUM Belongs to the inherent rights of the owner , Implicitly own .

has_any_column_privilege(user, table, privilege)

describe ： Specify whether the user has access to any column of the table .

surface 1  Parameter type description

Parameter name	Legal input type
user	name, oid
table	text, oid
privilege	text

Return type ：Boolean

has_any_column_privilege(table, privilege)

describe ： Whether the current user has access to any column of the table , Legal parameter types are shown in table 5-12.

Return type ：Boolean

remarks ：has_any_column_privilege Check whether the user accesses any columns of the table in a specific way . Its parameters may be similar to has_table_privilege similar , Except that the access permission type must be SELECT、INSERT、UPDATE、COMMENT or REFERENCES Some combinations of .

Having the table level permission of the table implies having the column level permission of each column of the table , So if it is related to has_table_privilege Parameters are the same ,has_any_column_privilege Always returns true. However, if you grant column level permissions to at least one column, it also returns success .

has_column_privilege(user, table, column, privilege)

describe ： Specify whether the user has access to the column .

surface 2  Parameter type description

Parameter name	Legal input type
user	name, oid
table	text, oid
column	text, smallint
privilege	text

Return type ：Boolean