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decode3.sqlx
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decode3.sqlx
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config { hasOutput: true }
/*
* Copyright 2019 Google LLC
*
* Licensed 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.
*/
CREATE OR REPLACE FUNCTION ${self()}(
expr ANY TYPE,
s1 ANY TYPE, r1 ANY TYPE,
s2 ANY TYPE, r2 ANY TYPE,
s3 ANY TYPE, r3 ANY TYPE,
def ANY TYPE) AS
((
CASE
WHEN expr = s1 OR (expr IS NULL AND s1 IS NULL) THEN r1
WHEN expr = s2 OR (expr IS NULL AND s2 IS NULL) THEN r2
WHEN expr = s3 OR (expr IS NULL AND s3 IS NULL) THEN r3
ELSE def
END
))