43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
// Copyright 2019 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package expression
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import (
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"math"
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"github.com/pingcap/tidb/util/chunk"
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)
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func (b *builtinLog10Sig) vecEvalReal(input *chunk.Chunk, result *chunk.Column) error {
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if err := b.args[0].VecEvalReal(b.ctx, input, result); err != nil {
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return err
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}
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f64s := result.Float64s()
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for i := 0; i < len(f64s); i++ {
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if result.IsNull(i) {
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continue
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}
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if f64s[i] <= 0 {
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result.SetNull(i, true)
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} else {
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f64s[i] = math.Log10(f64s[i])
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}
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}
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return nil
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}
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func (b *builtinLog10Sig) vectorized() bool {
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return true
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}
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