ritesh-kapoor commented on a change in pull request #1755: CALCITE-3731 : Add
IF function for BigQuery, Hive and Spark Dialects
URL: https://github.com/apache/calcite/pull/1755#discussion_r365859669
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File path:
core/src/test/java/org/apache/calcite/sql/test/SqlOperatorBaseTest.java
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@@ -4504,6 +4504,27 @@ private void checkNullOperand(SqlTester tester, String
op) {
testerMysql.checkNull("reverse(cast(null as varchar(1)))");
}
+ @Test public void testIfFunc() {
+ final SqlTester testerBigQuery = tester(SqlLibrary.BIGQUERY);
+ testerBigQuery.setFor(SqlLibraryOperators.IF);
+ testerBigQuery.checkString("if(1 = 2, 1, 2)", "2", "INTEGER NOT NULL");
+ testerBigQuery.checkString("if('abc'='xyz', 'abc', 'xyz')", "xyz",
"CHAR(3) NOT NULL");
+ testerBigQuery.checkString("if(substring('abc',1,2)='ab', 'abc', 'xyz')",
"abc", "CHAR(3) NOT"
+ + " NULL");
+ final SqlTester testerHive = tester(SqlLibrary.HIVE);
+ testerHive.setFor(SqlLibraryOperators.IF);
+ testerHive.checkString("if(1 = 2, 1, 2)", "2", "INTEGER NOT NULL");
Review comment:
It would be great to have test cases with null values
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