From 2da64e885c8d830845330a93e767e7fa57f2fbb6 Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Fri, 23 Jul 2021 09:15:51 -0400
Subject: [PATCH] explain this schema change too
---
src/_zkapauthorizer/schema.py | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/_zkapauthorizer/schema.py b/src/_zkapauthorizer/schema.py
index a8c6b75..27890a3 100644
--- a/src/_zkapauthorizer/schema.py
+++ b/src/_zkapauthorizer/schema.py
@@ -208,6 +208,17 @@ _UPGRADES = {
""",
"""
+ -- Give each unblinded token a reference to the [redemption-groups]
+ -- table identifying the group that token arrived with. This lets us
+ -- act collectively on tokens from these groups and identify tokens
+ -- which are spendable.
+ --
+ -- The default value is provided for rows that
+ -- existed prior to this upgrade which had no group association. For
+ -- unblinded tokens to exist at all there must be at least one voucher
+ -- in the vouchers table. [redemption-groups] will therefore have at
+ -- least one row added to it (by the statement a few lines above).
+ -- Note that SQLite3 rowid numbering begins at 1.
ALTER TABLE [unblinded-tokens] ADD COLUMN [redemption-group] integer DEFAULT 1
""",
],
--
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