"uri-id" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the item uri"],
"parent-uri-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table that contains the parent uri"],
"thr-parent-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table that contains the thread parent uri"],
+ "external-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the external uri"],
"created" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Creation timestamp."],
"edited" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Date of last edit (default is created)"],
"received" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "datetime"],
"PRIMARY" => ["uri-id"],
"parent-uri-id" => ["parent-uri-id"],
"thr-parent-id" => ["thr-parent-id"],
+ "external-id" => ["external-id"],
"owner-id" => ["owner-id"],
"author-id" => ["author-id"],
"causer-id" => ["causer-id"],
"uri-id" => ["type" => "int unsigned", "not null" => "1", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the item uri"],
"parent-uri-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table that contains the parent uri"],
"thr-parent-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table that contains the thread parent uri"],
+ "external-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the external uri"],
"created" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Creation timestamp."],
"edited" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Date of last edit (default is created)"],
"received" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "datetime"],
"uid_wall" => ["uid", "wall"],
"parent-uri-id" => ["parent-uri-id"],
"thr-parent-id" => ["thr-parent-id"],
+ "external-id" => ["external-id"],
"owner-id" => ["owner-id"],
"author-id" => ["author-id"],
"causer-id" => ["causer-id"],