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--
-- 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_purse_requests(
IN shard_suffix VARCHAR DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name VARCHAR DEFAULT 'purse_requests';
BEGIN
PERFORM create_partitioned_table(
'CREATE TABLE %I '
'(purse_requests_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY'
',purse_pub BYTEA NOT NULL CHECK (LENGTH(purse_pub)=32)'
',merge_pub BYTEA NOT NULL CHECK (LENGTH(merge_pub)=32)'
',purse_creation INT8 NOT NULL'
',purse_expiration INT8 NOT NULL'
',h_contract_terms BYTEA NOT NULL CHECK (LENGTH(h_contract_terms)=64)'
',age_limit INT4 NOT NULL'
',flags INT4 NOT NULL'
',in_reserve_quota BOOLEAN NOT NULL DEFAULT(FALSE)'
',amount_with_fee_val INT8 NOT NULL'
',amount_with_fee_frac INT4 NOT NULL'
',purse_fee_val INT8 NOT NULL'
',purse_fee_frac INT4 NOT NULL'
',balance_val INT8 NOT NULL DEFAULT (0)'
',balance_frac INT4 NOT NULL DEFAULT (0)'
',purse_sig BYTEA NOT NULL CHECK(LENGTH(purse_sig)=64)'
',PRIMARY KEY (purse_pub)'
') %s ;'
,table_name
,'PARTITION BY HASH (purse_pub)'
,shard_suffix
);
PERFORM comment_partitioned_table(
'Requests establishing purses, associating them with a contract but without a target reserve'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Public key of the purse'
,'purse_pub'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Local time when the purse was created. Determines applicable purse fees.'
,'purse_creation'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'When the purse is set to expire'
,'purse_expiration'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Hash of the contract the parties are to agree to'
,'h_contract_terms'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'see the enum TALER_WalletAccountMergeFlags'
,'flags'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'set to TRUE if this purse currently counts against the number of free purses in the respective reserve'
,'in_reserve_quota'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Total amount expected to be in the purse'
,'amount_with_fee_val'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Purse fee the client agreed to pay from the reserve (accepted by the exchange at the time the purse was created). Zero if in_reserve_quota is TRUE.'
,'purse_fee_val'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Total amount actually in the purse (updated)'
,'balance_val'
,table_name
,shard_suffix
);
PERFORM comment_partitioned_column(
'Signature of the purse affirming the purse parameters, of type TALER_SIGNATURE_PURSE_REQUEST'
,'purse_sig'
,table_name
,shard_suffix
);
END
$$;
CREATE FUNCTION constrain_table_purse_requests(
IN partition_suffix VARCHAR
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name VARCHAR DEFAULT 'purse_requests';
BEGIN
table_name = concat_ws('_', table_name, shard_suffix);
-- FIXME: change to materialized index by merge_pub!
EXECUTE FORMAT (
'CREATE INDEX ' || table_name || '_merge_pub '
'ON ' || table_name || ' '
'(merge_pub);'
);
-- FIXME: drop index on master (crosses shards)?
-- Or use materialized index? (needed?)
EXECUTE FORMAT (
'CREATE INDEX ' || table_name || '_purse_expiration '
'ON ' || table_name || ' '
'(purse_expiration);'
);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_purse_requests_serial_id_key'
' UNIQUE (purse_requests_serial_id) '
);
END
$$;
INSERT INTO exchange_tables
(name
,version
,action
,partitioned
,by_range)
VALUES
('purse_requests'
,'exchange-0002'
,'create'
,TRUE
,FALSE),
('purse_requests'
,'exchange-0002'
,'constrain'
,TRUE
,FALSE);
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