Database Table: userpicblob2
From Dreamwidth Notes
Clustered. Stores the actual userpic blobs. Optionally a blob server can be used instead of storing them here in the database.
Where non-mogile sites store userpics.
Definition
CREATE TABLE userpicblob2 ( userid INT UNSIGNED NOT NULL, picid INT UNSIGNED NOT NULL, imagedata BLOB, PRIMARY KEY (userid, picid) ) max_rows=10000000