lang text NOT NULL DEFAULT 'eng',
cat integer REFERENCES word (id),
ref integer REFERENCES word (id),
+ prio smallint NOT NULL DEFAULT '1',
source text,
thumb text[],
wptitle text,
COMMENT ON COLUMN word.lang IS 'ISO 639-3 language code';
COMMENT ON COLUMN word.cat IS 'hierarchical classification';
COMMENT ON COLUMN word.ref IS 'reference to equivalent eng translation';
+COMMENT ON COLUMN word.prio IS 'difficulty level or importance; lower values have precedence';
COMMENT ON COLUMN word.source IS 'URI of downloaded image';
COMMENT ON COLUMN word.thumb IS 'ImageMagick convert options to create thumbnail from source image';
COMMENT ON COLUMN word.wptitle IS 'reference Wikipedia article';