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expression: fix wrong calculation order of radians (#57672) #57687

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expression: fix wrong calculation order of radians (#57672) #57687

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d84bd5b
fix radian
gengliqi Nov 25, 2024
b786a75
update integration test result
gengliqi Nov 25, 2024
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2 changes: 1 addition & 1 deletion pkg/expression/builtin_math.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1821,7 +1821,7 @@ func (b *builtinRadiansSig) evalReal(ctx EvalContext, row chunk.Row) (float64, b
if isNull || err != nil {
return 0, isNull, err
}
return x * math.Pi / 180, false, nil
return x * (math.Pi / 180), false, nil
}

type sinFunctionClass struct {
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2 changes: 2 additions & 0 deletions pkg/expression/builtin_math_test.go
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Expand Up @@ -756,6 +756,8 @@ func TestRadians(t *testing.T) {
{float64(180), float64(math.Pi)},
{-360, -2 * float64(math.Pi)},
{"180", float64(math.Pi)},
{float64(1.0e308), float64(1.7453292519943295e306)},
{float64(23), float64(0.4014257279586958)},
}

Dtbl := tblToDtbl(tbl)
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2 changes: 1 addition & 1 deletion pkg/expression/builtin_math_vec.go
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Expand Up @@ -314,7 +314,7 @@ func (b *builtinRadiansSig) vecEvalReal(ctx EvalContext, input *chunk.Chunk, res
if result.IsNull(i) {
continue
}
f64s[i] = f64s[i] * math.Pi / 180
f64s[i] = f64s[i] * (math.Pi / 180)
}
return nil
}
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2 changes: 1 addition & 1 deletion tests/integrationtest/r/expression/builtin.result
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Expand Up @@ -520,7 +520,7 @@ crc32(0) crc32(-0) crc32('0') crc32('abc') crc32('ABC') crc32(NULL) crc32('') cr
4108050209 4108050209 4108050209 891568578 2743272264 NULL 0 62177901
SELECT radians(1.0), radians(pi()), radians(pi()/2), radians(180), radians(1.009);
radians(1.0) radians(pi()) radians(pi()/2) radians(180) radians(1.009)
0.017453292519943295 0.05483113556160754 0.02741556778080377 3.141592653589793 0.01761037215262278
0.017453292519943295 0.05483113556160755 0.027415567780803774 3.141592653589793 0.01761037215262278
drop table if exists t;
create table t(a int);
insert into t values(1),(2),(3);
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