github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/simulator/sqlgen/errors.go (about)

     1  // Copyright 2022 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 sqlgen
    15  
    16  import (
    17  	"github.com/pingcap/errors"
    18  )
    19  
    20  var (
    21  	// ErrUKColValueNotProvided means that some column values of the unique key are not provided.
    22  	ErrUKColValueNotProvided = errors.New("some UK column values are not provided")
    23  	// ErrMissingUKValue means the input unique key is nil.
    24  	ErrMissingUKValue = errors.New("missing the UK values")
    25  	// ErrWhereConditionsEmpty means the WHERE clause compare conditions is empty.
    26  	// It is usually caused when there is no filter clause generated on generating a WHERE clause.
    27  	ErrWhereFiltersEmpty = errors.New("`WHERE` condition filters is empty")
    28  )