caicancai commented on code in PR #3648:
URL: https://github.com/apache/calcite/pull/3648#discussion_r1468283719
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -6188,6 +6188,29 @@ void checkRegexpExtract(SqlOperatorFixture f0,
FunctionAlias functionAlias) {
f.checkNull("log(10, cast(null as real))");
}
+ @Test void testLog2Func() {
+ final SqlOperatorFixture f0 = Fixtures.forOperators(true);
+ f0.setFor(SqlLibraryOperators.LOG2, VmName.EXPAND);
+ f0.checkFails("^log2(4)^",
+ "No match found for function signature LOG2\\(<NUMERIC>\\)", false);
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.MYSQL);
+ f.checkScalarApprox("log2(2)", "DOUBLE NOT NULL",
+ isWithin(1.0, 0.000001));
+ f.checkScalarApprox("log2(4)", "DOUBLE NOT NULL",
+ isWithin(2.0, 0.000001));
+ f.checkScalarApprox("log2(65536)", "DOUBLE NOT NULL",
+ isWithin(16.0, 0.000001));
+ f.checkScalarApprox("log2(-2)", "DOUBLE NOT NULL",
+ "NaN");
+ f.checkScalarApprox("log2(2/3)", "DOUBLE NOT NULL",
Review Comment:
I put the test into log10 and had the same problem
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