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database.go
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database.go
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/*
Copyright 2024 The ch-rollup Authors.
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 database declaring ClickHouse Cluster and Shard interface.
package database
import (
"context"
"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
)
//go:generate go run go.uber.org/mock/mockgen -source database.go -package=mock -destination=mock/database.go
// Cluster ...
type Cluster interface {
// Shards returns shards for rollup.
Shards() []Shard
// Close Cluster.
Close() error
}
// Shard ...
type Shard interface {
Name() string
Exec(ctx context.Context, query string, args ...any) error
Query(ctx context.Context, query string, args ...any) (driver.Rows, error)
QueryRow(ctx context.Context, query string, args ...any) driver.Row
}