1 files changed, 37 insertions, 0 deletions
diff --git a/src/arrow/dev/benchmarking/ddl/1_09_table_public_unit.sql b/src/arrow/dev/benchmarking/ddl/1_09_table_public_unit.sql
new file mode 100644
index 000000000..a8cf57669
--- /dev/null
+++ b/src/arrow/dev/benchmarking/ddl/1_09_table_public_unit.sql
@@ -0,0 +1,37 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+*/
+
+
+-- UNIT
+CREATE TABLE IF NOT EXISTS public.unit
+(
+  unit_id SERIAL PRIMARY KEY
+  , units citext NOT NULL UNIQUE
+  , benchmark_type_id integer NOT NULL
+  , FOREIGN KEY (benchmark_type_id)
+    REFERENCES public.benchmark_type(benchmark_type_id)
+);
+COMMENT ON TABLE public.unit IS 'The actual units for a reported benchmark.';
+COMMENT ON COLUMN public.unit.units
+  IS 'For example: nanoseconds, microseconds, bytes, megabytes.';
+
+-- CONSTRAINTS
+ALTER TABLE public.unit
+  ADD CONSTRAINT unit_check_units_string_length
+  CHECK (char_length(units) < 63);