Law out the plan for the new schema

sql/SQLite3/7.sql

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+-- SPDX-License-Identifier: MIT
+-- Copyright 2017 J. King, Dustin Wilson et al.
+-- See LICENSE and AUTHORS files for details
+
+-- Create a temporary table mapping old article IDs to new article IDs per-user.
+-- This will have the result of every article ID being new, which will make the initial sync painful,
+-- but it will avoid potential weird behaviour
+create table arsse_articles_map(
+    article int not null,
+    subscription int not null,
+    id integer primary key autoincrement
+);
+insert into arsse_articles_map(article, subscription) values(1,1);
+delete from arsse_articles_map;
+update sqlite_sequence set seq = (select max(id) from arsse_articles) where name = 'arsse_articles_map';
+insert into arsse_articles_map(article, subscription)
+    select arsse_articles.id as article, arsse_subscriptions.id as subscription from arsse_articles cross join arsse_subscriptions using(feed);
+
+-- Perform a similar reset for editions
+create table arsse_editions_temp(
+    id integer primary key autoincrement,
+    article integer
+);
+insert into arsse_editions_temp values(1,1);
+delete from arsse_editions_temp;
+update sqlite_sequence set seq = (select max(id) from arsse_editions) where name = 'arsse_editions_temp';
+insert into arsse_editions_temp(article) select id from arsse_articles_map;
+
+-- Create a new articles table which combines the marks table
+
+-- Create a new table to hold article content
+
+-- Fix up the enclosures table
+
+-- Fix up the label members table
+
+-- Rebuild the editions table
+
+-- Create a new subscriptions table which combines the feeds table
+
+-- Fix up the tag members table
+
+-- Fix up the icons table
+
+-- Delete the old tables and rename the new ones