aboutsummaryrefslogtreecommitdiff
path: root/src/exchangedb/0002-refresh_revealed_coins.sql
blob: 5fd315ba317ecb27c6e27ac1dd5a16578fdfbd0c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
--
-- This file is part of TALER
-- Copyright (C) 2014--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_refresh_revealed_coins(
  IN partition_suffix VARCHAR DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
  table_name VARCHAR DEFAULT 'refresh_revealed_coins';
BEGIN
  PERFORM create_partitioned_table(
    'CREATE TABLE %I'
      '(rrc_serial BIGINT GENERATED BY DEFAULT AS IDENTITY'
      ',melt_serial_id INT8 NOT NULL'
      ',freshcoin_index INT4 NOT NULL'
      ',link_sig BYTEA NOT NULL CHECK(LENGTH(link_sig)=64)'
      ',denominations_serial INT8 NOT NULL'
      ',coin_ev BYTEA NOT NULL'
      ',h_coin_ev BYTEA NOT NULL CHECK(LENGTH(h_coin_ev)=64)'
      ',ev_sig BYTEA NOT NULL'
      ',ewv BYTEA NOT NULL'
    ') %s ;'
    ,table_name
    ,'PARTITION BY HASH (melt_serial_id)'
    ,partition_suffix
  );
  PERFORM comment_partitioned_table(
     'Revelations about the new coins that are to be created during a melting session.'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'needed for exchange-auditor replication logic'
    ,'rrc_serial'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'Identifies the refresh commitment (rc) of the melt operation.'
    ,'melt_serial_id'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'index of the fresh coin being created (one melt operation may result in multiple fresh coins)'
    ,'freshcoin_index'
    ,table_name
    ,partition_suffix
  );
  --
  -- FIXME: Add comment for link_sig
  --
  PERFORM comment_partitioned_column(
     'envelope of the new coin to be signed'
    ,'coin_ev'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'exchange contributed values in the creation of the fresh coin (see /csr)'
    ,'ewv'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'hash of the envelope of the new coin to be signed (for lookups)'
    ,'h_coin_ev'
    ,table_name
    ,partition_suffix
  );
  PERFORM comment_partitioned_column(
     'exchange signature over the envelope'
    ,'ev_sig'
    ,table_name
    ,partition_suffix
  );
END
$$;


CREATE FUNCTION constrain_table_refresh_revealed_coins(
  IN partition_suffix VARCHAR
)
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
  table_name VARCHAR DEFAULT 'refresh_revealed_coins';
BEGIN
  table_name = concat_ws('_', table_name, partition_suffix);
  EXECUTE FORMAT (
    'CREATE INDEX ' || table_name || '_coins_by_melt_serial_id_index '
    'ON ' || table_name || ' '
    '(melt_serial_id);'
  );
  EXECUTE FORMAT (
    'ALTER TABLE ' || table_name ||
    ' ADD CONSTRAINT ' || table_name || '_rrc_serial_key'
    ' UNIQUE (rrc_serial) '
    ',ADD CONSTRAINT ' || table_name || '_coin_ev_key'
    ' UNIQUE (coin_ev) '
    ',ADD CONSTRAINT ' || table_name || '_h_coin_ev_key'
    ' UNIQUE (h_coin_ev) '
    ',ADD PRIMARY KEY (melt_serial_id, freshcoin_index)'
  );
END
$$;


CREATE FUNCTION foreign_table_refresh_revealed_coins()
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
  table_name VARCHAR DEFAULT 'refresh_revealed_coins';
BEGIN
  EXECUTE FORMAT (
    'ALTER TABLE ' || table_name ||
    ' ADD CONSTRAINT ' || table_name || '_foreign_melt'
    ' FOREIGN KEY (melt_serial_id)'
    ' REFERENCES refresh_commitments (melt_serial_id) ON DELETE CASCADE'
    ',ADD CONSTRAINT ' || table_name || '_foreign_denom'
    ' FOREIGN KEY (denominations_serial)'
    ' REFERENCES denominations (denominations_serial) ON DELETE CASCADE'
  );
END
$$;


INSERT INTO exchange_tables
    (name
    ,version
    ,action
    ,partitioned
    ,by_range)
  VALUES
    ('refresh_revealed_coins'
    ,'exchange-0002'
    ,'create'
    ,TRUE
    ,FALSE),
    ('refresh_revealed_coins'
    ,'exchange-0002'
    ,'constrain'
    ,TRUE
    ,FALSE),
    ('refresh_revealed_coins'
    ,'exchange-0002'
    ,'foreign'
    ,TRUE
    ,FALSE);