8f380b5b70
* ddl: forbid changing column collation in some cases. When the new collation framework is enabled, the index of string columns is collation-aware. Changing the collation of such columns require the rewrite of the index, which is not supported yet, so we forbid such cases for now.
204 lines
20 KiB
Go
204 lines
20 KiB
Go
// Copyright 2020 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ddl
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import (
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"fmt"
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"github.com/pingcap/parser/terror"
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mysql "github.com/pingcap/tidb/errno"
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)
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var (
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// errWorkerClosed means we have already closed the DDL worker.
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errInvalidWorker = terror.ClassDDL.New(mysql.ErrInvalidDDLWorker, mysql.MySQLErrName[mysql.ErrInvalidDDLWorker])
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// errNotOwner means we are not owner and can't handle DDL jobs.
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errNotOwner = terror.ClassDDL.New(mysql.ErrNotOwner, mysql.MySQLErrName[mysql.ErrNotOwner])
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errCantDecodeIndex = terror.ClassDDL.New(mysql.ErrCantDecodeIndex, mysql.MySQLErrName[mysql.ErrCantDecodeIndex])
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errInvalidDDLJob = terror.ClassDDL.New(mysql.ErrInvalidDDLJob, mysql.MySQLErrName[mysql.ErrInvalidDDLJob])
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errCancelledDDLJob = terror.ClassDDL.New(mysql.ErrCancelledDDLJob, mysql.MySQLErrName[mysql.ErrCancelledDDLJob])
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errFileNotFound = terror.ClassDDL.New(mysql.ErrFileNotFound, mysql.MySQLErrName[mysql.ErrFileNotFound])
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errRunMultiSchemaChanges = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "multi schema change"))
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errWaitReorgTimeout = terror.ClassDDL.New(mysql.ErrLockWaitTimeout, mysql.MySQLErrName[mysql.ErrWaitReorgTimeout])
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errInvalidStoreVer = terror.ClassDDL.New(mysql.ErrInvalidStoreVersion, mysql.MySQLErrName[mysql.ErrInvalidStoreVersion])
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// ErrRepairTableFail is used to repair tableInfo in repair mode.
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ErrRepairTableFail = terror.ClassDDL.New(mysql.ErrRepairTable, mysql.MySQLErrName[mysql.ErrRepairTable])
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// We don't support dropping column with index covered now.
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errCantDropColWithIndex = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "drop column with index"))
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errUnsupportedAddColumn = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "add column"))
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errUnsupportedModifyColumn = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "modify column: %s"))
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errUnsupportedModifyCharset = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "modify %s"))
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errUnsupportedModifyCollation = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "modifying collation from %s to %s"))
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errUnsupportedPKHandle = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "drop integer primary key"))
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errUnsupportedCharset = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "charset %s and collate %s"))
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errUnsupportedShardRowIDBits = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "shard_row_id_bits for table with primary key as row id"))
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errBlobKeyWithoutLength = terror.ClassDDL.New(mysql.ErrBlobKeyWithoutLength, mysql.MySQLErrName[mysql.ErrBlobKeyWithoutLength])
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errKeyPart0 = terror.ClassDDL.New(mysql.ErrKeyPart0, mysql.MySQLErrName[mysql.ErrKeyPart0])
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errIncorrectPrefixKey = terror.ClassDDL.New(mysql.ErrWrongSubKey, mysql.MySQLErrName[mysql.ErrWrongSubKey])
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errTooLongKey = terror.ClassDDL.New(mysql.ErrTooLongKey, mysql.MySQLErrName[mysql.ErrTooLongKey])
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errKeyColumnDoesNotExits = terror.ClassDDL.New(mysql.ErrKeyColumnDoesNotExits, mysql.MySQLErrName[mysql.ErrKeyColumnDoesNotExits])
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errUnknownTypeLength = terror.ClassDDL.New(mysql.ErrUnknownTypeLength, mysql.MySQLErrName[mysql.ErrUnknownTypeLength])
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errUnknownFractionLength = terror.ClassDDL.New(mysql.ErrUnknownFractionLength, mysql.MySQLErrName[mysql.ErrUnknownFractionLength])
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errInvalidDDLJobVersion = terror.ClassDDL.New(mysql.ErrInvalidDDLJobVersion, mysql.MySQLErrName[mysql.ErrInvalidDDLJobVersion])
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errInvalidUseOfNull = terror.ClassDDL.New(mysql.ErrInvalidUseOfNull, mysql.MySQLErrName[mysql.ErrInvalidUseOfNull])
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errTooManyFields = terror.ClassDDL.New(mysql.ErrTooManyFields, mysql.MySQLErrName[mysql.ErrTooManyFields])
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errInvalidSplitRegionRanges = terror.ClassDDL.New(mysql.ErrInvalidSplitRegionRanges, mysql.MySQLErrName[mysql.ErrInvalidSplitRegionRanges])
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errReorgPanic = terror.ClassDDL.New(mysql.ErrReorgPanic, mysql.MySQLErrName[mysql.ErrReorgPanic])
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errFkColumnCannotDrop = terror.ClassDDL.New(mysql.ErrFkColumnCannotDrop, mysql.MySQLErrName[mysql.ErrFkColumnCannotDrop])
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errFKIncompatibleColumns = terror.ClassDDL.New(mysql.ErrFKIncompatibleColumns, mysql.MySQLErrName[mysql.ErrFKIncompatibleColumns])
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errOnlyOnRangeListPartition = terror.ClassDDL.New(mysql.ErrOnlyOnRangeListPartition, mysql.MySQLErrName[mysql.ErrOnlyOnRangeListPartition])
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// errWrongKeyColumn is for table column cannot be indexed.
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errWrongKeyColumn = terror.ClassDDL.New(mysql.ErrWrongKeyColumn, mysql.MySQLErrName[mysql.ErrWrongKeyColumn])
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// errWrongFKOptionForGeneratedColumn is for wrong foreign key reference option on generated columns.
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errWrongFKOptionForGeneratedColumn = terror.ClassDDL.New(mysql.ErrWrongFKOptionForGeneratedColumn, mysql.MySQLErrName[mysql.ErrWrongFKOptionForGeneratedColumn])
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// errUnsupportedOnGeneratedColumn is for unsupported actions on generated columns.
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errUnsupportedOnGeneratedColumn = terror.ClassDDL.New(mysql.ErrUnsupportedOnGeneratedColumn, mysql.MySQLErrName[mysql.ErrUnsupportedOnGeneratedColumn])
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// errGeneratedColumnNonPrior forbids to refer generated column non prior to it.
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errGeneratedColumnNonPrior = terror.ClassDDL.New(mysql.ErrGeneratedColumnNonPrior, mysql.MySQLErrName[mysql.ErrGeneratedColumnNonPrior])
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// errDependentByGeneratedColumn forbids to delete columns which are dependent by generated columns.
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errDependentByGeneratedColumn = terror.ClassDDL.New(mysql.ErrDependentByGeneratedColumn, mysql.MySQLErrName[mysql.ErrDependentByGeneratedColumn])
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// errJSONUsedAsKey forbids to use JSON as key or index.
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errJSONUsedAsKey = terror.ClassDDL.New(mysql.ErrJSONUsedAsKey, mysql.MySQLErrName[mysql.ErrJSONUsedAsKey])
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// errBlobCantHaveDefault forbids to give not null default value to TEXT/BLOB/JSON.
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errBlobCantHaveDefault = terror.ClassDDL.New(mysql.ErrBlobCantHaveDefault, mysql.MySQLErrName[mysql.ErrBlobCantHaveDefault])
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errTooLongIndexComment = terror.ClassDDL.New(mysql.ErrTooLongIndexComment, mysql.MySQLErrName[mysql.ErrTooLongIndexComment])
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// ErrInvalidDefaultValue returns for invalid default value for columns.
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ErrInvalidDefaultValue = terror.ClassDDL.New(mysql.ErrInvalidDefault, mysql.MySQLErrName[mysql.ErrInvalidDefault])
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// ErrGeneratedColumnRefAutoInc forbids to refer generated columns to auto-increment columns .
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ErrGeneratedColumnRefAutoInc = terror.ClassDDL.New(mysql.ErrGeneratedColumnRefAutoInc, mysql.MySQLErrName[mysql.ErrGeneratedColumnRefAutoInc])
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// ErrUnsupportedAddPartition returns for does not support add partitions.
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ErrUnsupportedAddPartition = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "add partitions"))
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// ErrUnsupportedCoalescePartition returns for does not support coalesce partitions.
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ErrUnsupportedCoalescePartition = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "coalesce partitions"))
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// ErrGeneratedColumnFunctionIsNotAllowed returns for unsupported functions for generated columns.
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ErrGeneratedColumnFunctionIsNotAllowed = terror.ClassDDL.New(mysql.ErrGeneratedColumnFunctionIsNotAllowed, mysql.MySQLErrName[mysql.ErrGeneratedColumnFunctionIsNotAllowed])
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// ErrUnsupportedPartitionByRangeColumns returns for does unsupported partition by range columns.
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ErrUnsupportedPartitionByRangeColumns = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "partition by range columns"))
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errUnsupportedCreatePartition = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "partition type, treat as normal table"))
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errTablePartitionDisabled = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, "Partitions are ignored because Table Partition is disabled, please set 'tidb_enable_table_partition' if you need to need to enable it")
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errUnsupportedIndexType = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "index type"))
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// ErrDupKeyName returns for duplicated key name
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ErrDupKeyName = terror.ClassDDL.New(mysql.ErrDupKeyName, mysql.MySQLErrName[mysql.ErrDupKeyName])
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// ErrInvalidDDLState returns for invalid ddl model object state.
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ErrInvalidDDLState = terror.ClassDDL.New(mysql.ErrInvalidDDLState, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrInvalidDDLState]))
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// ErrUnsupportedModifyPrimaryKey returns an error when add or drop the primary key.
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// It's exported for testing.
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ErrUnsupportedModifyPrimaryKey = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "%s primary key"))
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// ErrColumnBadNull returns for a bad null value.
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ErrColumnBadNull = terror.ClassDDL.New(mysql.ErrBadNull, mysql.MySQLErrName[mysql.ErrBadNull])
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// ErrBadField forbids to refer to unknown column.
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ErrBadField = terror.ClassDDL.New(mysql.ErrBadField, mysql.MySQLErrName[mysql.ErrBadField])
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// ErrCantRemoveAllFields returns for deleting all columns.
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ErrCantRemoveAllFields = terror.ClassDDL.New(mysql.ErrCantRemoveAllFields, mysql.MySQLErrName[mysql.ErrCantRemoveAllFields])
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// ErrCantDropFieldOrKey returns for dropping a non-existent field or key.
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ErrCantDropFieldOrKey = terror.ClassDDL.New(mysql.ErrCantDropFieldOrKey, mysql.MySQLErrName[mysql.ErrCantDropFieldOrKey])
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// ErrInvalidOnUpdate returns for invalid ON UPDATE clause.
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ErrInvalidOnUpdate = terror.ClassDDL.New(mysql.ErrInvalidOnUpdate, mysql.MySQLErrName[mysql.ErrInvalidOnUpdate])
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// ErrTooLongIdent returns for too long name of database/table/column/index.
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ErrTooLongIdent = terror.ClassDDL.New(mysql.ErrTooLongIdent, mysql.MySQLErrName[mysql.ErrTooLongIdent])
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// ErrWrongDBName returns for wrong database name.
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ErrWrongDBName = terror.ClassDDL.New(mysql.ErrWrongDBName, mysql.MySQLErrName[mysql.ErrWrongDBName])
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// ErrWrongTableName returns for wrong table name.
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ErrWrongTableName = terror.ClassDDL.New(mysql.ErrWrongTableName, mysql.MySQLErrName[mysql.ErrWrongTableName])
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// ErrWrongColumnName returns for wrong column name.
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ErrWrongColumnName = terror.ClassDDL.New(mysql.ErrWrongColumnName, mysql.MySQLErrName[mysql.ErrWrongColumnName])
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// ErrInvalidGroupFuncUse returns for using invalid group functions.
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ErrInvalidGroupFuncUse = terror.ClassDDL.New(mysql.ErrInvalidGroupFuncUse, mysql.MySQLErrName[mysql.ErrInvalidGroupFuncUse])
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// ErrTableMustHaveColumns returns for missing column when creating a table.
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ErrTableMustHaveColumns = terror.ClassDDL.New(mysql.ErrTableMustHaveColumns, mysql.MySQLErrName[mysql.ErrTableMustHaveColumns])
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// ErrWrongNameForIndex returns for wrong index name.
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ErrWrongNameForIndex = terror.ClassDDL.New(mysql.ErrWrongNameForIndex, mysql.MySQLErrName[mysql.ErrWrongNameForIndex])
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// ErrUnknownCharacterSet returns unknown character set.
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ErrUnknownCharacterSet = terror.ClassDDL.New(mysql.ErrUnknownCharacterSet, mysql.MySQLErrName[mysql.ErrUnknownCharacterSet])
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// ErrUnknownCollation returns unknown collation.
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ErrUnknownCollation = terror.ClassDDL.New(mysql.ErrUnknownCollation, mysql.MySQLErrName[mysql.ErrUnknownCollation])
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// ErrCollationCharsetMismatch returns when collation not match the charset.
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ErrCollationCharsetMismatch = terror.ClassDDL.New(mysql.ErrCollationCharsetMismatch, mysql.MySQLErrName[mysql.ErrCollationCharsetMismatch])
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// ErrConflictingDeclarations return conflict declarations.
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ErrConflictingDeclarations = terror.ClassDDL.New(mysql.ErrConflictingDeclarations, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrConflictingDeclarations], "CHARACTER SET ", "%s", "CHARACTER SET ", "%s"))
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// ErrPrimaryCantHaveNull returns All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use UNIQUE instead
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ErrPrimaryCantHaveNull = terror.ClassDDL.New(mysql.ErrPrimaryCantHaveNull, mysql.MySQLErrName[mysql.ErrPrimaryCantHaveNull])
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// ErrErrorOnRename returns error for wrong database name in alter table rename
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ErrErrorOnRename = terror.ClassDDL.New(mysql.ErrErrorOnRename, mysql.MySQLErrName[mysql.ErrErrorOnRename])
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// ErrViewSelectClause returns error for create view with select into clause
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ErrViewSelectClause = terror.ClassDDL.New(mysql.ErrViewSelectClause, mysql.MySQLErrName[mysql.ErrViewSelectClause])
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// ErrNotAllowedTypeInPartition returns not allowed type error when creating table partition with unsupported expression type.
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ErrNotAllowedTypeInPartition = terror.ClassDDL.New(mysql.ErrFieldTypeNotAllowedAsPartitionField, mysql.MySQLErrName[mysql.ErrFieldTypeNotAllowedAsPartitionField])
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// ErrPartitionMgmtOnNonpartitioned returns it's not a partition table.
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ErrPartitionMgmtOnNonpartitioned = terror.ClassDDL.New(mysql.ErrPartitionMgmtOnNonpartitioned, mysql.MySQLErrName[mysql.ErrPartitionMgmtOnNonpartitioned])
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// ErrDropPartitionNonExistent returns error in list of partition.
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ErrDropPartitionNonExistent = terror.ClassDDL.New(mysql.ErrDropPartitionNonExistent, mysql.MySQLErrName[mysql.ErrDropPartitionNonExistent])
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// ErrSameNamePartition returns duplicate partition name.
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ErrSameNamePartition = terror.ClassDDL.New(mysql.ErrSameNamePartition, mysql.MySQLErrName[mysql.ErrSameNamePartition])
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// ErrRangeNotIncreasing returns values less than value must be strictly increasing for each partition.
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ErrRangeNotIncreasing = terror.ClassDDL.New(mysql.ErrRangeNotIncreasing, mysql.MySQLErrName[mysql.ErrRangeNotIncreasing])
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// ErrPartitionMaxvalue returns maxvalue can only be used in last partition definition.
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ErrPartitionMaxvalue = terror.ClassDDL.New(mysql.ErrPartitionMaxvalue, mysql.MySQLErrName[mysql.ErrPartitionMaxvalue])
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//ErrDropLastPartition returns cannot remove all partitions, use drop table instead.
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ErrDropLastPartition = terror.ClassDDL.New(mysql.ErrDropLastPartition, mysql.MySQLErrName[mysql.ErrDropLastPartition])
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//ErrTooManyPartitions returns too many partitions were defined.
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ErrTooManyPartitions = terror.ClassDDL.New(mysql.ErrTooManyPartitions, mysql.MySQLErrName[mysql.ErrTooManyPartitions])
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//ErrPartitionFunctionIsNotAllowed returns this partition function is not allowed.
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ErrPartitionFunctionIsNotAllowed = terror.ClassDDL.New(mysql.ErrPartitionFunctionIsNotAllowed, mysql.MySQLErrName[mysql.ErrPartitionFunctionIsNotAllowed])
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// ErrPartitionFuncNotAllowed returns partition function returns the wrong type.
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ErrPartitionFuncNotAllowed = terror.ClassDDL.New(mysql.ErrPartitionFuncNotAllowed, mysql.MySQLErrName[mysql.ErrPartitionFuncNotAllowed])
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// ErrUniqueKeyNeedAllFieldsInPf returns must include all columns in the table's partitioning function.
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ErrUniqueKeyNeedAllFieldsInPf = terror.ClassDDL.New(mysql.ErrUniqueKeyNeedAllFieldsInPf, mysql.MySQLErrName[mysql.ErrUniqueKeyNeedAllFieldsInPf])
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errWrongExprInPartitionFunc = terror.ClassDDL.New(mysql.ErrWrongExprInPartitionFunc, mysql.MySQLErrName[mysql.ErrWrongExprInPartitionFunc])
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// ErrWarnDataTruncated returns data truncated error.
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ErrWarnDataTruncated = terror.ClassDDL.New(mysql.WarnDataTruncated, mysql.MySQLErrName[mysql.WarnDataTruncated])
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// ErrCoalesceOnlyOnHashPartition returns coalesce partition can only be used on hash/key partitions.
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ErrCoalesceOnlyOnHashPartition = terror.ClassDDL.New(mysql.ErrCoalesceOnlyOnHashPartition, mysql.MySQLErrName[mysql.ErrCoalesceOnlyOnHashPartition])
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// ErrViewWrongList returns create view must include all columns in the select clause
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ErrViewWrongList = terror.ClassDDL.New(mysql.ErrViewWrongList, mysql.MySQLErrName[mysql.ErrViewWrongList])
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// ErrAlterOperationNotSupported returns when alter operations is not supported.
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ErrAlterOperationNotSupported = terror.ClassDDL.New(mysql.ErrAlterOperationNotSupportedReason, mysql.MySQLErrName[mysql.ErrAlterOperationNotSupportedReason])
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// ErrWrongObject returns for wrong object.
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ErrWrongObject = terror.ClassDDL.New(mysql.ErrWrongObject, mysql.MySQLErrName[mysql.ErrWrongObject])
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// ErrTableCantHandleFt returns FULLTEXT keys are not supported by table type
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ErrTableCantHandleFt = terror.ClassDDL.New(mysql.ErrTableCantHandleFt, mysql.MySQLErrName[mysql.ErrTableCantHandleFt])
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// ErrFieldNotFoundPart returns an error when 'partition by columns' are not found in table columns.
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ErrFieldNotFoundPart = terror.ClassDDL.New(mysql.ErrFieldNotFoundPart, mysql.MySQLErrName[mysql.ErrFieldNotFoundPart])
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// ErrWrongTypeColumnValue returns 'Partition column values of incorrect type'
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ErrWrongTypeColumnValue = terror.ClassDDL.New(mysql.ErrWrongTypeColumnValue, mysql.MySQLErrName[mysql.ErrWrongTypeColumnValue])
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// ErrFunctionalIndexPrimaryKey returns 'The primary key cannot be a functional index'
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ErrFunctionalIndexPrimaryKey = terror.ClassDDL.New(mysql.ErrFunctionalIndexPrimaryKey, mysql.MySQLErrName[mysql.ErrFunctionalIndexPrimaryKey])
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// ErrFunctionalIndexOnField returns 'Functional index on a column is not supported. Consider using a regular index instead'
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ErrFunctionalIndexOnField = terror.ClassDDL.New(mysql.ErrFunctionalIndexOnField, mysql.MySQLErrName[mysql.ErrFunctionalIndexOnField])
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// ErrInvalidAutoRandom returns when auto_random is used incorrectly.
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ErrInvalidAutoRandom = terror.ClassDDL.New(mysql.ErrInvalidAutoRandom, mysql.MySQLErrName[mysql.ErrInvalidAutoRandom])
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// ErrSequenceRunOut returns when the sequence has been run out.
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ErrSequenceRunOut = terror.ClassDDL.New(mysql.ErrSequenceRunOut, mysql.MySQLErrName[mysql.ErrSequenceRunOut])
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// ErrSequenceInvalidData returns when sequence values are conflicting.
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ErrSequenceInvalidData = terror.ClassDDL.New(mysql.ErrSequenceInvalidData, mysql.MySQLErrName[mysql.ErrSequenceInvalidData])
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// ErrSequenceAccessFail returns when sequences are not able to access.
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ErrSequenceAccessFail = terror.ClassDDL.New(mysql.ErrSequenceAccessFail, mysql.MySQLErrName[mysql.ErrSequenceAccessFail])
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// ErrNotSequence returns when object is not a sequence.
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ErrNotSequence = terror.ClassDDL.New(mysql.ErrNotSequence, mysql.MySQLErrName[mysql.ErrNotSequence])
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// ErrUnknownSequence returns when drop / alter unknown sequence.
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ErrUnknownSequence = terror.ClassDDL.New(mysql.ErrUnknownSequence, mysql.MySQLErrName[mysql.ErrUnknownSequence])
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// ErrSequenceUnsupportedTableOption returns when unsupported table option exists in sequence.
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ErrSequenceUnsupportedTableOption = terror.ClassDDL.New(mysql.ErrSequenceUnsupportedTableOption, mysql.MySQLErrName[mysql.ErrSequenceUnsupportedTableOption])
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// ErrColumnTypeUnsupportedNextValue is returned when sequence next value is assigned to unsupported column type.
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ErrColumnTypeUnsupportedNextValue = terror.ClassDDL.New(mysql.ErrColumnTypeUnsupportedNextValue, mysql.MySQLErrName[mysql.ErrColumnTypeUnsupportedNextValue])
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// ErrUnsupportedExpressionIndex is returned when create an expression index without allow-expression-index.
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ErrUnsupportedExpressionIndex = terror.ClassDDL.New(mysql.ErrUnsupportedDDLOperation, fmt.Sprintf(mysql.MySQLErrName[mysql.ErrUnsupportedDDLOperation], "creating expression index without allow-expression-index in config"))
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)
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