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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 OR REPLACE FUNCTION create_table_aggregation_tracking(
  IN shard_suffix VARCHAR DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
  table_name VARCHAR DEFAULT 'aggregation_tracking';
BEGIN

  PERFORM create_partitioned_table(
    'CREATE TABLE IF NOT EXISTS %I'
      '(aggregation_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY' -- UNIQUE'
	    ',deposit_serial_id INT8 PRIMARY KEY' -- REFERENCES deposits (deposit_serial_id) ON DELETE CASCADE' -- FIXME change to coin_pub + deposit_serial_id for more efficient depost -- or something else ???
      ',wtid_raw BYTEA NOT NULL' -- CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE'
    ') %s ;'
    ,table_name
    ,'PARTITION BY HASH (deposit_serial_id)'
    ,shard_suffix
  );

  table_name = concat_ws('_', table_name, shard_suffix);

  EXECUTE FORMAT (
    'CREATE INDEX IF NOT EXISTS ' || table_name || '_by_wtid_raw_index '
    'ON ' || table_name || ' '
    '(wtid_raw);'
  );
  EXECUTE FORMAT (
    'COMMENT ON INDEX ' || table_name || '_by_wtid_raw_index '
    'IS ' || quote_literal('for lookup_transactions') || ';'
  );

END
$$;

CREATE OR REPLACE FUNCTION add_constraints_to_aggregation_tracking_partition(
  IN partition_suffix VARCHAR
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
BEGIN
  EXECUTE FORMAT (
    'ALTER TABLE aggregation_tracking_' || partition_suffix || ' '
      'ADD CONSTRAINT aggregation_tracking_' || partition_suffix || '_aggregation_serial_id_key '
        'UNIQUE (aggregation_serial_id) '
  );
END
$$;