added schema for withdraw with age restriction

1 files changed, 109 insertions, 0 deletions

diff --git a/src/exchangedb/0003-withdraw_age_reveals.sql b/src/exchangedb/0003-withdraw_age_reveals.sql
new file mode 100644
index 00000000..9e421c9b
--- /dev/null
+++ b/src/exchangedb/0003-withdraw_age_reveals.sql
@@ -0,0 +1,109 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2022 Taler Systems SA
+--
+-- TALER is free software; you can redistribute it and/or modify it under the
+-- terms of the GNU General Public License as published by the Free Software
+-- Foundation; either version 3, or (at your option) any later version.
+--
+-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+-- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with
+-- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+--
+
+CREATE FUNCTION create_table_withdraw_age_reveals(
+  IN partition_suffix VARCHAR DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name VARCHAR DEFAULT 'withdraw_age_reveals';
+BEGIN
+  PERFORM create_partitioned_table(
+    'CREATE TABLE %I'
+      '(withdraw_age_commitments_id INT8 NOT NULL' -- TODO: can here be the foreign key reference?
+      ',freshcoin_index INT4 NOT NULL'
+      ',denominations_serial INT8 NOT NULL' -- TODO: can here be the foreign key reference?
+      ',h_coin_ev BYTEA CHECK (LENGTH(h_coin_ev)=32)'
+    ') %s ;'
+    ,table_name
+    ,'PARTITION BY HASH (withdraw_age_commitments_id)' -- TODO: does that make sense?
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_table(
+     'Reveal of proofs of the correct age restriction after the commitment when withdrawing coins with age restriction'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Foreign key reference to the corresponding commitment'
+    ,'withdraw_age_commitments_id'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Index of the coin in the withdraw-age request, which is implicitly a batch request'
+    ,'freshcoin_index'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Foreign key reference to the denominations'
+    ,'denominations_serial'
+    ,table_name
+    ,partition_suffix
+  );
+  PERFORM comment_partitioned_column(
+     'Hash of the blinded coins'
+    ,'h_coin_ev'
+    ,table_name
+    ,partition_suffix
+  );
+END
+$$;
+
+
+CREATE FUNCTION foreign_table_withdraw_age_reveals()
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  table_name VARCHAR DEFAULT 'withdraw_age_reveals';
+BEGIN
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name ||
+    ' ADD CONSTRAINT ' || table_name || '_foreign_withdraw_age_commitment_id'
+    ' FOREIGN KEY (withdraw_age_commitments_id) '
+    ' REFERENCES withdraw_age_commitments (withdraw_age_commitment_id) ON DELETE CASCADE'
+  );
+  EXECUTE FORMAT (
+    'ALTER TABLE ' || table_name ||
+    ' ADD CONSTRAINT ' || table_name || '_foreign_denominations_serial'
+    ' FOREIGN KEY (denominations_serial) '
+    ' REFERENCES denominations (denominations_serial) ON DELETE CASCADE'
+  );
+END
+$$;
+
+
+INSERT INTO exchange_tables
+    (name
+    ,version
+    ,action
+    ,partitioned
+    ,by_range)
+  VALUES
+    ('withdraw_age_reveals'
+    ,'exchange-0003'
+    ,'create'
+    ,TRUE
+    ,FALSE),
+    ('withdraw_age_reveals'
+    ,'exchange-0003'
+    ,'foreign'
+    ,TRUE
+    ,FALSE);