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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_refresh_transfer_keys(
+ IN partition_suffix TEXT DEFAULT NULL
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+ table_name TEXT DEFAULT 'refresh_transfer_keys';
+BEGIN
+ PERFORM create_partitioned_table(
+ 'CREATE TABLE %I'
+ '(rtc_serial BIGINT GENERATED BY DEFAULT AS IDENTITY'
+ ',melt_serial_id INT8 PRIMARY KEY'
+ ',transfer_pub BYTEA NOT NULL CHECK(LENGTH(transfer_pub)=32)'
+ ',transfer_privs BYTEA NOT NULL'
+ ') %s ;'
+ ,table_name
+ ,'PARTITION BY HASH (melt_serial_id)'
+ ,partition_suffix
+ );
+ PERFORM comment_partitioned_table(
+ 'Transfer keys of a refresh operation (the data revealed to the exchange).'
+ ,table_name
+ ,partition_suffix
+ );
+ PERFORM comment_partitioned_column(
+ 'needed for exchange-auditor replication logic'
+ ,'rtc_serial'
+ ,table_name
+ ,partition_suffix
+ );
+ PERFORM comment_partitioned_column(
+ 'Identifies the refresh commitment (rc) of the operation.'
+ ,'melt_serial_id'
+ ,table_name
+ ,partition_suffix
+ );
+ PERFORM comment_partitioned_column(
+ 'transfer public key for the gamma index'
+ ,'transfer_pub'
+ ,table_name
+ ,partition_suffix
+ );
+ PERFORM comment_partitioned_column(
+ 'array of TALER_CNC_KAPPA-1 transfer private keys that have been revealed, with the gamma entry being skipped'
+ ,'transfer_privs'
+ ,table_name
+ ,partition_suffix
+ );
+END
+$$;
+
+
+CREATE FUNCTION constrain_table_refresh_transfer_keys(
+ IN partition_suffix TEXT
+)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+ table_name TEXT DEFAULT 'refresh_transfer_keys';
+BEGIN
+ table_name = concat_ws('_', table_name, partition_suffix);
+ EXECUTE FORMAT (
+ 'ALTER TABLE ' || table_name ||
+ ' ADD CONSTRAINT ' || table_name || '_rtc_serial_key'
+ ' UNIQUE (rtc_serial)'
+ );
+END
+$$;
+
+
+CREATE FUNCTION foreign_table_refresh_transfer_keys()
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+ table_name TEXT DEFAULT 'refresh_transfer_keys';
+BEGIN
+ EXECUTE FORMAT (
+ 'ALTER TABLE ' || table_name ||
+ ' ADD CONSTRAINT ' || table_name || 'foreign_melt_serial_id'
+ ' FOREIGN KEY (melt_serial_id)'
+ ' REFERENCES refresh_commitments (melt_serial_id) ON DELETE CASCADE'
+ );
+END
+$$;
+
+
+INSERT INTO exchange_tables
+ (name
+ ,version
+ ,action
+ ,partitioned
+ ,by_range)
+ VALUES
+ ('refresh_transfer_keys'
+ ,'exchange-0002'
+ ,'create'
+ ,TRUE
+ ,FALSE),
+ ('refresh_transfer_keys'
+ ,'exchange-0002'
+ ,'constrain'
+ ,TRUE
+ ,FALSE),
+ ('refresh_transfer_keys'
+ ,'exchange-0002'
+ ,'foreign'
+ ,TRUE
+ ,FALSE);