mysql> SELECT argos_revision.*, HEX(rev_sha1) FROM argos_page JOIN argos_revision ON (rev_id = page_latest) WHERE page_namespace=6 AND page_title='ModelServer_documentation.pdf';
mysql> SELECT argos_slots.*, argos_content.*, HEX(content_sha1) FROM argos_slots LEFT JOIN argos_content ON ( content_id = slot_content_id) WHERE slot_revision_id = 6274;