146 lines
3.5 KiB
Go
146 lines
3.5 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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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/chunk"
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)
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func (b *builtinCastIntAsDurationSig) vecEvalDuration(input *chunk.Chunk, result *chunk.Column) error {
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n := input.NumRows()
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buf, err := b.bufAllocator.get(types.ETInt, n)
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if err != nil {
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return err
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}
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defer b.bufAllocator.put(buf)
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if err := b.args[0].VecEvalInt(b.ctx, input, buf); err != nil {
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return err
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}
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result.ResizeGoDuration(n, false)
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result.MergeNulls(buf)
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i64s := buf.Int64s()
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ds := result.GoDurations()
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for i := 0; i < n; i++ {
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if result.IsNull(i) {
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continue
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}
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dur, err := types.NumberToDuration(i64s[i], int8(b.tp.Decimal))
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if err != nil {
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if types.ErrOverflow.Equal(err) {
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err = b.ctx.GetSessionVars().StmtCtx.HandleOverflow(err, err)
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}
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if err != nil {
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return err
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}
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result.SetNull(i, true)
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continue
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}
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ds[i] = dur.Duration
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}
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return nil
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}
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func (b *builtinCastIntAsDurationSig) vectorized() bool {
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return true
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}
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func (b *builtinCastIntAsIntSig) vecEvalInt(input *chunk.Chunk, result *chunk.Column) error {
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if err := b.args[0].VecEvalInt(b.ctx, input, result); err != nil {
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return err
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}
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if b.inUnion && mysql.HasUnsignedFlag(b.tp.Flag) {
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i64s := result.Int64s()
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// the null array of result is set by its child args[0],
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// so we can skip it here to make this loop simpler to improve its performance.
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for i := range i64s {
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if i64s[i] < 0 {
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i64s[i] = 0
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}
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}
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}
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return nil
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}
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func (b *builtinCastIntAsIntSig) vectorized() bool {
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return true
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}
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func (b *builtinCastIntAsRealSig) vecEvalReal(input *chunk.Chunk, result *chunk.Column) error {
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n := input.NumRows()
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buf, err := b.bufAllocator.get(types.ETInt, n)
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if err != nil {
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return err
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}
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defer b.bufAllocator.put(buf)
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if err := b.args[0].VecEvalInt(b.ctx, input, buf); err != nil {
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return err
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}
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result.ResizeFloat64(n, false)
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result.MergeNulls(buf)
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i64s := buf.Int64s()
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rs := result.Float64s()
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hasUnsignedFlag0 := mysql.HasUnsignedFlag(b.tp.Flag)
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hasUnsignedFlag1 := mysql.HasUnsignedFlag(b.args[0].GetType().Flag)
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for i := 0; i < n; i++ {
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if result.IsNull(i) {
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continue
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}
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if !hasUnsignedFlag0 && !hasUnsignedFlag1 {
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rs[i] = float64(i64s[i])
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} else if b.inUnion && i64s[i] < 0 {
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rs[i] = 0
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} else {
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// recall that, int to float is different from uint to float
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rs[i] = float64(uint64(i64s[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 *builtinCastIntAsRealSig) vectorized() bool {
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return true
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}
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func (b *builtinCastRealAsRealSig) 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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n := input.NumRows()
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f64s := result.Float64s()
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conditionUnionAndUnsigned := b.inUnion && mysql.HasUnsignedFlag(b.tp.Flag)
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if !conditionUnionAndUnsigned {
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return nil
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}
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for i := 0; i < n; 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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f64s[i] = 0
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}
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}
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return nil
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}
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func (b *builtinCastRealAsRealSig) vectorized() bool {
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return true
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}
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