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--
-- This file is part of TALER
-- Copyright (C) 2023 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/>
--
-- @author Özgür Kesim
CREATE FUNCTION create_table_age_withdraw(
IN partition_suffix TEXT DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'age_withdraw';
BEGIN
PERFORM create_partitioned_table(
'CREATE TABLE %I'
'(age_withdraw_id BIGINT GENERATED BY DEFAULT AS IDENTITY'
',h_commitment BYTEA NOT NULL CONSTRAINT h_commitment_length CHECK(LENGTH(h_commitment)=64)'
',max_age SMALLINT NOT NULL CONSTRAINT max_age_positive CHECK(max_age>=0)'
',amount_with_fee taler_amount NOT NULL'
',reserve_pub BYTEA NOT NULL CONSTRAINT reserve_pub_length CHECK(LENGTH(reserve_pub)=32)'
',reserve_sig BYTEA NOT NULL CONSTRAINT reserve_sig_length CHECK(LENGTH(reserve_sig)=64)'
',noreveal_index SMALLINT NOT NULL CONSTRAINT noreveal_index_positive CHECK(noreveal_index>=0)'
',h_blind_evs BYTEA[] NOT NULL CONSTRAINT h_blind_evs_length CHECK(cardinality(h_blind_evs)=cardinality(denom_serials))'
',denom_serials INT8[] NOT NULL CONSTRAINT denom_serials_array_length CHECK(cardinality(denom_serials)=cardinality(denom_sigs))'
',denom_sigs BYTEA[] NOT NULL CONSTRAINT denom_sigs_array_length CHECK(cardinality(denom_sigs)=cardinality(denom_serials))'
') %s ;'
,table_name
,'PARTITION BY HASH (reserve_pub)'
,partition_suffix
);
PERFORM comment_partitioned_table(
'Commitments made when withdrawing coins with age restriction and the gamma value chosen by the exchange. '
'It also contains the blindly signed coins, their signatures and denominations.'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'The gamma value chosen by the exchange in the cut-and-choose protocol'
,'noreveal_index'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'The maximum age (in years) that the client commits to with this request'
,'max_age'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Commitment made by the client, hash over the various client inputs in the cut-and-choose protocol'
,'h_commitment'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Reference to the public key of the reserve from which the coins are going to be withdrawn'
,'reserve_pub'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Signature of the reserve''s private key over the age-withdraw request'
,'reserve_sig'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Array of references to the denominations'
,'denom_serials'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Array of the blinded envelopes of the chosen fresh coins, with value as given by the denomination in the corresponding slot in denom_serials'
,'h_blind_evs'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Array of signatures over each blinded envelope'
,'denom_sigs'
,table_name
,partition_suffix
);
END
$$;
CREATE FUNCTION constrain_table_age_withdraw(
IN partition_suffix TEXT
)
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'age_withdraw';
BEGIN
table_name = concat_ws('_', table_name, partition_suffix);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD PRIMARY KEY (h_commitment);'
);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_h_commitment_reserve_pub_key'
' UNIQUE (h_commitment, reserve_pub);'
);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_age_withdraw_id_key'
' UNIQUE (age_withdraw_id);'
);
END
$$;
CREATE FUNCTION foreign_table_age_withdraw()
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'age_withdraw';
BEGIN
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_foreign_reserve_pub'
' FOREIGN KEY (reserve_pub)'
' REFERENCES reserves(reserve_pub) ON DELETE CASCADE;'
);
END
$$;
INSERT INTO exchange_tables
(name
,version
,action
,partitioned
,by_range)
VALUES
('age_withdraw', 'exchange-0002', 'create', TRUE ,FALSE),
('age_withdraw', 'exchange-0002', 'constrain',TRUE ,FALSE),
('age_withdraw', 'exchange-0002', 'foreign', TRUE ,FALSE);
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