github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/pkg/cputil/table.go (about)

     1  // Copyright 2020 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package cputil
    15  
    16  import (
    17  	"fmt"
    18  
    19  	"github.com/pingcap/tiflow/dm/pkg/utils"
    20  )
    21  
    22  const maxSchemaLength = 64
    23  
    24  // LoaderCheckpoint returns loader's checkpoint table name.
    25  func LoaderCheckpoint(task string) string {
    26  	return task + "_loader_checkpoint"
    27  }
    28  
    29  // LightningCheckpoint returns lightning's checkpoint table name.
    30  func LightningCheckpoint(task string) string {
    31  	return task + "_lightning_checkpoint_list"
    32  }
    33  
    34  // LightningCheckpointSchema returns lightning's checkpoint schema name.
    35  func LightningCheckpointSchema(task string, sourceID string) string {
    36  	if task == "" {
    37  		return "tidb_lightning_checkpoint"
    38  	}
    39  	return utils.TruncateStringQuiet(
    40  		fmt.Sprintf("%s_%d_tidb_lightning_checkpoint", task, utils.GenHashKey(sourceID)),
    41  		maxSchemaLength)
    42  }
    43  
    44  // SyncerCheckpoint returns syncer's checkpoint table name.
    45  func SyncerCheckpoint(task string) string {
    46  	return task + "_syncer_checkpoint"
    47  }
    48  
    49  // SyncerShardMeta returns syncer's sharding meta table name for pessimistic.
    50  func SyncerShardMeta(task string) string {
    51  	return task + "_syncer_sharding_meta"
    52  }
    53  
    54  // SyncerOnlineDDL returns syncer's onlineddl checkpoint table name.
    55  func SyncerOnlineDDL(task string) string {
    56  	return task + "_onlineddl"
    57  }
    58  
    59  func ValidatorCheckpoint(task string) string {
    60  	return task + "_validator_checkpoint"
    61  }
    62  
    63  func ValidatorPendingChange(task string) string {
    64  	return task + "_validator_pending_change"
    65  }
    66  
    67  func ValidatorErrorChange(task string) string {
    68  	return task + "_validator_error_change"
    69  }
    70  
    71  func ValidatorTableStatus(task string) string {
    72  	return task + "_validator_table_status"
    73  }