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uuid.go
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uuid.go
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// Licensed to ClickHouse, Inc. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. ClickHouse, Inc. licenses this file to you 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 clickhouse_api
import (
"context"
"fmt"
"github.com/google/uuid"
)
func UUIDInsertRead() error {
conn, err := GetNativeConnection(nil, nil, nil)
if err != nil {
return err
}
ctx := context.Background()
conn.Exec(ctx, "DROP TABLE IF EXISTS example")
if err = conn.Exec(ctx, `
CREATE TABLE example (
col1 UUID,
col2 UUID
)
Engine Memory
`); err != nil {
return err
}
batch, err := conn.PrepareBatch(ctx, "INSERT INTO example")
if err != nil {
return err
}
col1Data, _ := uuid.NewUUID()
if err = batch.Append(
col1Data,
"603966d6-ed93-11ec-8ea0-0242ac120002",
); err != nil {
return err
}
if err = batch.Send(); err != nil {
return err
}
var (
col1 uuid.UUID
col2 uuid.UUID
)
if err = conn.QueryRow(ctx, "SELECT * FROM example").Scan(&col1, &col2); err != nil {
return err
}
fmt.Printf("col1=%v, col2=%v\n", col1, col2)
return nil
}