+function upgrade_to_9(){
+ echo " upgrade database from version 0.8 to version 0.9"
+ echo " change length of columns 'path' and 'name' to 255 in table 'images', and change length of column 'name' to 255 in table 'flavors'"
+ echo "ALTER TABLE images CHANGE COLUMN path path VARCHAR(255) NOT NULL AFTER uuid, CHANGE COLUMN name name VARCHAR(255) NOT NULL AFTER path;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "ALTER TABLE flavors CHANGE COLUMN name name VARCHAR(255) NOT NULL AFTER uuid;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) VALUES (9, '0.9', '0.5.1', 'increase length of columns path and name to 255 in table images, and change length of column name to 255 in table flavors', '2017-01-10');"| $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}
+function downgrade_from_9(){
+ echo " downgrade database from version 0.9 to version 0.8"
+ echo " change length of columns 'path' and 'name' to 100 and 64 in table 'images'"
+ echo "ALTER TABLE images CHANGE COLUMN path path VARCHAR(100) NOT NULL AFTER uuid, CHANGE COLUMN name name VARCHAR(64) NOT NULL AFTER path;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "ALTER TABLE flavors CHANGE COLUMN name name VARCHAR(64) NOT NULL AFTER uuid;" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+ echo "DELETE FROM schema_version WHERE version_int = '9';" | $DBCMD || ! echo "ERROR. Aborted!" || exit -1
+}
+