wehub-resource-sync
131 lines
4.0 KiB
Go
131 lines
4.0 KiB
Go
// Copyright 2024 Dolthub, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package functions
|
|
|
|
import (
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/dolthub/go-mysql-server/sql"
|
|
|
|
"github.com/dolthub/doltgresql/server/functions/framework"
|
|
pgtypes "github.com/dolthub/doltgresql/server/types"
|
|
"github.com/dolthub/doltgresql/utils"
|
|
)
|
|
|
|
// initFloat4 registers the functions to the catalog.
|
|
func initFloat4() {
|
|
framework.RegisterFunction(float4in)
|
|
framework.RegisterFunction(float4out)
|
|
framework.RegisterFunction(float4recv)
|
|
framework.RegisterFunction(float4send)
|
|
framework.RegisterFunction(btfloat4cmp)
|
|
framework.RegisterFunction(btfloat48cmp)
|
|
}
|
|
|
|
// float4in represents the PostgreSQL function of float4 type IO input.
|
|
var float4in = framework.Function1{
|
|
Name: "float4in",
|
|
Return: pgtypes.Float32,
|
|
Parameters: [1]*pgtypes.DoltgresType{pgtypes.Cstring},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
|
|
input := val.(string)
|
|
fVal, err := strconv.ParseFloat(strings.TrimSpace(input), 32)
|
|
if err != nil {
|
|
return nil, pgtypes.ErrInvalidSyntaxForType.New("float4", input)
|
|
}
|
|
return float32(fVal), nil
|
|
},
|
|
}
|
|
|
|
// float4out represents the PostgreSQL function of float4 type IO output.
|
|
var float4out = framework.Function1{
|
|
Name: "float4out",
|
|
Return: pgtypes.Cstring,
|
|
Parameters: [1]*pgtypes.DoltgresType{pgtypes.Float32},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
|
|
return strconv.FormatFloat(float64(val.(float32)), 'f', -1, 32), nil
|
|
},
|
|
}
|
|
|
|
// float4recv represents the PostgreSQL function of float4 type IO receive.
|
|
var float4recv = framework.Function1{
|
|
Name: "float4recv",
|
|
Return: pgtypes.Float32,
|
|
Parameters: [1]*pgtypes.DoltgresType{pgtypes.Internal},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
|
|
data := val.([]byte)
|
|
if data == nil {
|
|
return nil, nil
|
|
}
|
|
reader := utils.NewWireReader(data)
|
|
return reader.ReadFloat32(), nil
|
|
},
|
|
}
|
|
|
|
// float4send represents the PostgreSQL function of float4 type IO send.
|
|
var float4send = framework.Function1{
|
|
Name: "float4send",
|
|
Return: pgtypes.Bytea,
|
|
Parameters: [1]*pgtypes.DoltgresType{pgtypes.Float32},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
|
|
writer := utils.NewWireWriter()
|
|
writer.WriteFloat32(val.(float32))
|
|
return writer.BufferData(), nil
|
|
},
|
|
}
|
|
|
|
// btfloat4cmp represents the PostgreSQL function of float4 type compare.
|
|
var btfloat4cmp = framework.Function2{
|
|
Name: "btfloat4cmp",
|
|
Return: pgtypes.Int32,
|
|
Parameters: [2]*pgtypes.DoltgresType{pgtypes.Float32, pgtypes.Float32},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
|
|
ab := val1.(float32)
|
|
bb := val2.(float32)
|
|
if ab == bb {
|
|
return int32(0), nil
|
|
} else if ab < bb {
|
|
return int32(-1), nil
|
|
} else {
|
|
return int32(1), nil
|
|
}
|
|
},
|
|
}
|
|
|
|
// btfloat48cmp represents the PostgreSQL function of float4 type compare with float8.
|
|
var btfloat48cmp = framework.Function2{
|
|
Name: "btfloat48cmp",
|
|
Return: pgtypes.Int32,
|
|
Parameters: [2]*pgtypes.DoltgresType{pgtypes.Float32, pgtypes.Float64},
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
|
|
ab := float64(val1.(float32))
|
|
bb := val2.(float64)
|
|
if ab == bb {
|
|
return int32(0), nil
|
|
} else if ab < bb {
|
|
return int32(-1), nil
|
|
} else {
|
|
return int32(1), nil
|
|
}
|
|
},
|
|
}
|