48 lines
1.6 KiB
MySQL
48 lines
1.6 KiB
MySQL
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--
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-- This file is part of TALER
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-- Copyright (C) 2014--2022 Taler Systems SA
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--
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-- TALER is free software; you can redistribute it and/or modify it under the
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-- terms of the GNU General Public License as published by the Free Software
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-- Foundation; either version 3, or (at your option) any later version.
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--
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-- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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-- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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-- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License along with
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-- TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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--
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CREATE OR REPLACE FUNCTION create_partitioned_table(
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IN table_definition TEXT -- SQL template for table creation
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,IN table_name TEXT -- base name of the table
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,IN main_table_partition_str TEXT -- declaration for how to partition the table
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,IN partition_suffix TEXT DEFAULT NULL -- NULL: no partitioning, 0: yes partitioning, no sharding, >0: sharding
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)
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RETURNS VOID
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LANGUAGE plpgsql
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AS $$
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BEGIN
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IF (partition_suffix IS NULL)
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THEN
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-- no partitioning, disable option
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main_table_partition_str = '';
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ELSE
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IF (partition_suffix::int > 0)
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THEN
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-- sharding, add shard name
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table_name=table_name || '_' || partition_suffix;
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END IF;
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END IF;
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EXECUTE FORMAT(
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table_definition,
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table_name,
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main_table_partition_str
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);
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END $$;
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COMMENT ON FUNCTION create_partitioned_table
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IS 'Generic function to create a table that is partitioned or sharded.';
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