cp sql/ from GNU Taler exchange

include/sql/benchmark-0001.sql

@@ -0,0 +1,55 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2014--2021 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/>
+--
+
+-- Everything in one big transaction
+BEGIN;
+
+-- Check patch versioning is in place.
+SELECT _v.register_patch('benchmark-0001', NULL, NULL);
+
+-- Naive, btree version
+CREATE TABLE IF NOT EXISTS benchmap
+  (uuid BIGSERIAL PRIMARY KEY
+  ,hc BYTEA UNIQUE CHECK(LENGTH(hc)=64)
+  ,expiration_date INT8 NOT NULL
+  );
+
+-- Replace btree with hash-based index
+CREATE TABLE IF NOT EXISTS benchhmap
+  (uuid BIGSERIAL PRIMARY KEY
+  ,hc BYTEA NOT NULL CHECK(LENGTH(hc)=64)
+  ,expiration_date INT8 NOT NULL
+  );
+CREATE INDEX IF NOT EXISTS benchhmap_index
+  ON benchhmap
+  USING HASH (hc);
+ALTER TABLE benchhmap
+  ADD CONSTRAINT pk
+  EXCLUDE USING HASH (hc with =);
+
+-- Keep btree, also add 32-bit hash-based index on top
+CREATE TABLE IF NOT EXISTS benchemap
+  (uuid BIGSERIAL PRIMARY KEY
+  ,ihc INT4 NOT NULL
+  ,hc BYTEA UNIQUE CHECK(LENGTH(hc)=64)
+  ,expiration_date INT8 NOT NULL
+  );
+CREATE INDEX IF NOT EXISTS benchemap_index
+  ON benchemap
+  USING HASH (ihc);
+
+-- Complete transaction
+COMMIT;