diff --git a/tables.sql b/tables.sql
index 35e48dc..dec7a7b 100644
--- a/tables.sql
+++ b/tables.sql
@@ -1,6 +1,15 @@
 alter database PA set timezone to 'Australia/Victoria'; 
 
-create table SETTINGS( ID integer, IMPORT_PATH varchar, STORAGE_PATH varchar, RECYCLE_BIN_PATH varchar, constraint PK_SETTINGS_ID primary key(ID) );
+-- these are hard-coded at present, not sure I can reflexively find models from API?
+create table AI_MODEL ( ID integer, NAME varchar(24), constraint PK_AI_MODEL primary key(ID) );
+insert into AI_MODEL values ( 1, 'hog' );
+insert into AI_MODEL values ( 2, 'cnn' );
+
+create table SETTINGS( 
+    ID integer, IMPORT_PATH varchar, STORAGE_PATH varchar, RECYCLE_BIN_PATH varchar, 
+    DEFAULT_MODEL integer, DEFAULT_THRESHOLD float,
+    constraint PK_SETTINGS_ID primary key(ID),
+    constraint FK_DEFAULT_MODEL foreign key (DEFAULT_MODEL) references AI_MODEL(ID) );
 
 create table PA_USER( ID integer, dn varchar, constraint PK_PA_USER_ID primary key(ID) );
 
@@ -45,15 +54,17 @@ create table REFIMG ( ID integer, FNAME varchar(128), FACE bytea, ORIG_W integer
 
 create table FACE( ID integer, FACE bytea, LOCN varchar(32), constraint PK_FACE_ID primary key(ID) );
 
-create table FACE_FILE_LINK( FACE_ID integer, FILE_EID integer,
+create table FACE_FILE_LINK( FACE_ID integer, FILE_EID integer, MODEL_USED integer,
     constraint PK_FFL_FACE_ID_FILE_ID primary key(FACE_ID, FILE_EID),
     constraint FK_FFL_FACE_ID foreign key (FACE_ID) references FACE(ID) on delete cascade,
-    constraint FK_FFL_FILE_EID foreign key (FILE_EID) references FILE(EID) );
+    constraint FK_FFL_FILE_EID foreign key (FILE_EID) references FILE(EID),
+    constraint FK_FFL_MODEL_USED foreign key (MODEL_USED) references AI_MODEL(ID) );
 
-create table FACE_REFIMG_LINK( FACE_ID integer, REFIMG_ID integer,
+create table FACE_REFIMG_LINK( FACE_ID integer, REFIMG_ID integer, MODEL_USED integer,
     constraint PK_FRL_FACE_ID_REFIMG_ID primary key(FACE_ID, REFIMG_ID), 
     constraint FK_FRL_FACE_ID foreign key (FACE_ID) references FACE(ID) on delete cascade,
-    constraint FK_FRL_REFIMG_ID foreign key (REFIMG_ID) references REFIMG(ID) );
+    constraint FK_FRL_REFIMG_ID foreign key (REFIMG_ID) references REFIMG(ID),
+    constraint FK_FRL_MODEL_USED foreign key (MODEL_USED) references AI_MODEL(ID) );
 
 create table PERSON_REFIMG_LINK ( PERSON_ID integer, REFIMG_ID integer,
     constraint PK_PRL primary key(PERSON_ID, REFIMG_ID), 
@@ -109,6 +120,6 @@ insert into PERSON values ( (select nextval('PERSON_ID_SEQ')), 'mum', 'Mandy', '
 insert into PERSON values ( (select nextval('PERSON_ID_SEQ')), 'cam', 'Cameron', 'De Paoli' );
 insert into PERSON values ( (select nextval('PERSON_ID_SEQ')), 'mich', 'Michelle', 'De Paoli' );
 -- DEV:
-insert into SETTINGS ( id, import_path, storage_path, recycle_bin_path ) values ( (select nextval('SETTINGS_ID_SEQ')), '/home/ddp/src/photoassistant/images_to_process/#c:/Users/cam/Desktop/code/python/photoassistant/photos/#/home/ddp/src/photoassistant/new_img_dir/', '/home/ddp/src/photoassistant/storage/#c:/Users/cam/Desktop/code/python/photoassistant/storage/', '/home/ddp/src/photoassistant/.pa_bin/#c:/Users/cam/Desktop/code/python/photoassistant/.pa_bin/' );
+insert into SETTINGS ( id, import_path, storage_path, recycle_bin_path, default_model, default_threshold ) values ( (select nextval('SETTINGS_ID_SEQ')), '/home/ddp/src/photoassistant/images_to_process/#c:/Users/cam/Desktop/code/python/photoassistant/photos/#/home/ddp/src/photoassistant/new_img_dir/', '/home/ddp/src/photoassistant/storage/#c:/Users/cam/Desktop/code/python/photoassistant/storage/', '/home/ddp/src/photoassistant/.pa_bin/#c:/Users/cam/Desktop/code/python/photoassistant/.pa_bin/', 1, '0.55' );
 -- PROD:
---insert into SETTINGS ( id, import_path, storage_path, recycle_bin_path ) values ( (select nextval('SETTINGS_ID_SEQ')), '/export/docker/storage/Camera_uploads/', '/export/docker/storage/photos/', '/export/docker/storage/.pa_bin/' );
+--insert into SETTINGS ( id, import_path, storage_path, recycle_bin_path, default_model, default_threshold ) values ( (select nextval('SETTINGS_ID_SEQ')), '/export/docker/storage/Camera_uploads/', '/export/docker/storage/photos/', '/export/docker/storage/.pa_bin/', 1, '0.55' );