ddl

var (
	// RunWorker indicates if this TiDB server starts DDL worker and can run DDL job.
	RunWorker = true

	// WaitTimeWhenErrorOccured is waiting interval when processing DDL jobs encounter errors.
	WaitTimeWhenErrorOccured = 1 * time.Second
)

var (

	// ErrInvalidDefaultValue returns for invalid default value for columns.
	ErrInvalidDefaultValue = terror.ClassDDL.New(codeInvalidDefaultValue, mysql.MySQLErrName[mysql.ErrInvalidDefault])
	// ErrGeneratedColumnRefAutoInc forbids to refer generated columns to auto-increment columns .
	ErrGeneratedColumnRefAutoInc = terror.ClassDDL.New(codeErrGeneratedColumnRefAutoInc, mysql.MySQLErrName[mysql.ErrGeneratedColumnRefAutoInc])
	// ErrUnsupportedAddPartition returns for does not support add partitions.
	ErrUnsupportedAddPartition = terror.ClassDDL.New(codeUnsupportedAddPartition, "unsupported add partitions")
	// ErrUnsupportedCoalescePartition returns for does not support coalesce partitions.
	ErrUnsupportedCoalescePartition = terror.ClassDDL.New(codeUnsupportedCoalescePartition, "unsupported coalesce partitions")
	// ErrGeneratedColumnFunctionIsNotAllowed returns for unsupported functions for generated columns.
	ErrGeneratedColumnFunctionIsNotAllowed = terror.ClassDDL.New(codeErrGeneratedColumnFunctionIsNotAllowed, "Expression of generated column '%s' contains a disallowed function.")
	// ErrUnsupportedPartitionByRangeColumns returns for does unsupported partition by range columns.
	ErrUnsupportedPartitionByRangeColumns = terror.ClassDDL.New(codeUnsupportedPartitionByRangeColumns,
		"unsupported partition by range columns")

	// ErrDupKeyName returns for duplicated key name
	ErrDupKeyName = terror.ClassDDL.New(codeDupKeyName, "duplicate key name")
	// ErrInvalidDBState returns for invalid database state.
	ErrInvalidDBState = terror.ClassDDL.New(codeInvalidDBState, "invalid database state")
	// ErrInvalidTableState returns for invalid Table state.
	ErrInvalidTableState = terror.ClassDDL.New(codeInvalidTableState, "invalid table state")
	// ErrInvalidColumnState returns for invalid column state.
	ErrInvalidColumnState = terror.ClassDDL.New(codeInvalidColumnState, "invalid column state")
	// ErrInvalidIndexState returns for invalid index state.
	ErrInvalidIndexState = terror.ClassDDL.New(codeInvalidIndexState, "invalid index state")
	// ErrInvalidForeignKeyState returns for invalid foreign key state.
	ErrInvalidForeignKeyState = terror.ClassDDL.New(codeInvalidForeignKeyState, "invalid foreign key state")
	// ErrUnsupportedModifyPrimaryKey returns an error when add or drop the primary key.
	// It's exported for testing.
	ErrUnsupportedModifyPrimaryKey = terror.ClassDDL.New(codeUnsupportedModifyPrimaryKey, "unsupported %s primary key")

	// ErrColumnBadNull returns for a bad null value.
	ErrColumnBadNull = terror.ClassDDL.New(codeBadNull, "column cann't be null")
	// ErrBadField forbids to refer to unknown column.
	ErrBadField = terror.ClassDDL.New(codeBadField, "Unknown column '%s' in '%s'")
	// ErrCantRemoveAllFields returns for deleting all columns.
	ErrCantRemoveAllFields = terror.ClassDDL.New(codeCantRemoveAllFields, "can't delete all columns with ALTER TABLE")
	// ErrCantDropFieldOrKey returns for dropping a non-existent field or key.
	ErrCantDropFieldOrKey = terror.ClassDDL.New(codeCantDropFieldOrKey, "can't drop field; check that column/key exists")
	// ErrInvalidOnUpdate returns for invalid ON UPDATE clause.
	ErrInvalidOnUpdate = terror.ClassDDL.New(codeInvalidOnUpdate, mysql.MySQLErrName[mysql.ErrInvalidOnUpdate])
	// ErrTooLongIdent returns for too long name of database/table/column/index.
	ErrTooLongIdent = terror.ClassDDL.New(codeTooLongIdent, mysql.MySQLErrName[mysql.ErrTooLongIdent])
	// ErrWrongDBName returns for wrong database name.
	ErrWrongDBName = terror.ClassDDL.New(codeWrongDBName, mysql.MySQLErrName[mysql.ErrWrongDBName])
	// ErrWrongTableName returns for wrong table name.
	ErrWrongTableName = terror.ClassDDL.New(codeWrongTableName, mysql.MySQLErrName[mysql.ErrWrongTableName])
	// ErrWrongColumnName returns for wrong column name.
	ErrWrongColumnName = terror.ClassDDL.New(codeWrongColumnName, mysql.MySQLErrName[mysql.ErrWrongColumnName])
	// ErrTableMustHaveColumns returns for missing column when creating a table.
	ErrTableMustHaveColumns = terror.ClassDDL.New(codeTableMustHaveColumns, mysql.MySQLErrName[mysql.ErrTableMustHaveColumns])
	// ErrWrongNameForIndex returns for wrong index name.
	ErrWrongNameForIndex = terror.ClassDDL.New(codeWrongNameForIndex, mysql.MySQLErrName[mysql.ErrWrongNameForIndex])
	// ErrUnknownCharacterSet returns unknown character set.
	ErrUnknownCharacterSet = terror.ClassDDL.New(codeUnknownCharacterSet, "Unknown character set: '%s'")
	// ErrUnknownCollation returns unknown collation.
	ErrUnknownCollation = terror.ClassDDL.New(codeUnknownCollation, "Unknown collation: '%s'")
	// ErrCollationCharsetMismatch returns when collation not match the charset.
	ErrCollationCharsetMismatch = terror.ClassDDL.New(codeCollationCharsetMismatch, mysql.MySQLErrName[mysql.ErrCollationCharsetMismatch])
	// ErrConflictingDeclarations return conflict declarations.
	ErrConflictingDeclarations = terror.ClassDDL.New(codeConflictingDeclarations, "Conflicting declarations: 'CHARACTER SET %s' and 'CHARACTER SET %s'")
	// ErrPrimaryCantHaveNull returns All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use UNIQUE instead
	ErrPrimaryCantHaveNull = terror.ClassDDL.New(codePrimaryCantHaveNull, mysql.MySQLErrName[mysql.ErrPrimaryCantHaveNull])

	// ErrNotAllowedTypeInPartition returns not allowed type error when creating table partiton with unsupport expression type.
	ErrNotAllowedTypeInPartition = terror.ClassDDL.New(codeErrFieldTypeNotAllowedAsPartitionField, mysql.MySQLErrName[mysql.ErrFieldTypeNotAllowedAsPartitionField])
	// ErrPartitionMgmtOnNonpartitioned returns it's not a partition table.
	ErrPartitionMgmtOnNonpartitioned = terror.ClassDDL.New(codePartitionMgmtOnNonpartitioned, "Partition management on a not partitioned table is not possible")
	// ErrDropPartitionNonExistent returns error in list of partition.
	ErrDropPartitionNonExistent = terror.ClassDDL.New(codeDropPartitionNonExistent, " Error in list of partitions to %s")
	// ErrSameNamePartition returns duplicate partition name.
	ErrSameNamePartition = terror.ClassDDL.New(codeSameNamePartition, "Duplicate partition name %s")
	// ErrRangeNotIncreasing returns values less than value must be strictly increasing for each partition.
	ErrRangeNotIncreasing = terror.ClassDDL.New(codeRangeNotIncreasing, "VALUES LESS THAN value must be strictly increasing for each partition")
	// ErrPartitionMaxvalue returns maxvalue can only be used in last partition definition.
	ErrPartitionMaxvalue = terror.ClassDDL.New(codePartitionMaxvalue, "MAXVALUE can only be used in last partition definition")
	//ErrDropLastPartition returns cannot remove all partitions, use drop table instead.
	ErrDropLastPartition = terror.ClassDDL.New(codeDropLastPartition, mysql.MySQLErrName[mysql.ErrDropLastPartition])
	//ErrTooManyPartitions returns too many partitions were defined.
	ErrTooManyPartitions = terror.ClassDDL.New(codeTooManyPartitions, mysql.MySQLErrName[mysql.ErrTooManyPartitions])
	//ErrPartitionFunctionIsNotAllowed returns this partition function is not allowed.
	ErrPartitionFunctionIsNotAllowed = terror.ClassDDL.New(codePartitionFunctionIsNotAllowed, mysql.MySQLErrName[mysql.ErrPartitionFunctionIsNotAllowed])
	// ErrPartitionFuncNotAllowed returns partition function returns the wrong type.
	ErrPartitionFuncNotAllowed = terror.ClassDDL.New(codeErrPartitionFuncNotAllowed, mysql.MySQLErrName[mysql.ErrPartitionFuncNotAllowed])
	// ErrUniqueKeyNeedAllFieldsInPf returns must include all columns in the table's partitioning function.
	ErrUniqueKeyNeedAllFieldsInPf = terror.ClassDDL.New(codeUniqueKeyNeedAllFieldsInPf, mysql.MySQLErrName[mysql.ErrUniqueKeyNeedAllFieldsInPf])

	// ErrWarnDataTruncated returns data truncated error.
	ErrWarnDataTruncated = terror.ClassDDL.New(codeWarnDataTruncated, mysql.MySQLErrName[mysql.WarnDataTruncated])
	// ErrCoalesceOnlyOnHashPartition returns coalesce partition can only be used on hash/key partitions.
	ErrCoalesceOnlyOnHashPartition = terror.ClassDDL.New(codeCoalesceOnlyOnHashPartition, mysql.MySQLErrName[mysql.ErrCoalesceOnlyOnHashPartition])
	// ErrViewWrongList returns create view must include all columns in the select clause
	ErrViewWrongList = terror.ClassDDL.New(codeViewWrongList, mysql.MySQLErrName[mysql.ErrViewWrongList])
	// ErrAlterOperationNotSupported returns when alter operations is not supported.
	ErrAlterOperationNotSupported = terror.ClassDDL.New(codeNotSupportedAlterOperation, mysql.MySQLErrName[mysql.ErrAlterOperationNotSupportedReason])
	// ErrWrongObject returns for wrong object.
	ErrWrongObject = terror.ClassDDL.New(codeErrWrongObject, mysql.MySQLErrName[mysql.ErrWrongObject])
	// ErrTableCantHandleFt returns FULLTEXT keys are not supported by table type
	ErrTableCantHandleFt = terror.ClassDDL.New(codeErrTableCantHandleFt, mysql.MySQLErrName[mysql.ErrTableCantHandleFt])
	// ErrFieldNotFoundPart returns an error when 'partition by columns' are not found in table columns.
	ErrFieldNotFoundPart = terror.ClassDDL.New(codeFieldNotFoundPart, mysql.MySQLErrName[mysql.ErrFieldNotFoundPart])
	// ErrWrongTypeColumnValue returns 'Partition column values of incorrect type'
	ErrWrongTypeColumnValue = terror.ClassDDL.New(codeWrongTypeColumnValue, mysql.MySQLErrName[mysql.ErrWrongTypeColumnValue])
)

var ReorgWaitTimeout = 5 * time.Second