Add old fields, fix md5, fix migratins.

migrations/000018_alter_files_table_ffprobe_data.down.sql

@@ -1,2 +1,2 @@
 ALTER TABLE files
-DROP IF EXISTS ffprobe;
+DROP IF EXISTS ffprobe_data;

migrations/000020_alter_files_table_transcode.down.sql

@@ -0,0 +1,4 @@
+ALTER TABLE tasks
+DROP IF EXISTS old_md5,
+DROP IF EXISTS old_ffprobe_data,
+DROP IF EXISTS old_size bigint;

migrations/000020_alter_files_table_transcode.up.sql

@@ -0,0 +1,4 @@
+ALTER TABLE libraries
+ADD old_md5 uuid,
+ADD old_ffprobe_data JSONB,
+ADD old_size bigint;