Documentation
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Index ¶
- Variables
- func CastValue(ctx context.Context, val types.Datum, col *model.ColumnInfo) (casted types.Datum, err error)
- func CastValues(ctx context.Context, rec []types.Datum, cols []*Column, ignoreErr bool) (err error)
- func CheckNotNull(cols []*Column, row []types.Datum) error
- func CheckOnce(cols []*Column) error
- func ColDescFieldNames(full bool) []string
- func GetColDefaultValue(ctx context.Context, col *model.ColumnInfo) (types.Datum, bool, error)
- func GetZeroValue(col *model.ColumnInfo) types.Datum
- type ColDesc
- type Column
- type Table
Constants ¶
This section is empty.
Variables ¶
var ( // ErrIndexOutBound returns for index column offset out of bound. ErrIndexOutBound = terror.ClassTable.New(codeIndexOutBound, "index column offset out of bound") // ErrUnsupportedOp returns for unsupported operation. ErrUnsupportedOp = terror.ClassTable.New(codeUnsupportedOp, "operation not supported") // ErrRowNotFound returns for row not found. ErrRowNotFound = terror.ClassTable.New(codeRowNotFound, "can not find the row") // ErrTableStateCantNone returns for table none state. ErrTableStateCantNone = terror.ClassTable.New(codeTableStateCantNone, "table can not be in none state") // ErrColumnStateCantNone returns for column none state. ErrColumnStateCantNone = terror.ClassTable.New(codeColumnStateCantNone, "column can not be in none state") // ErrColumnStateNonPublic returns for column non-public state. ErrColumnStateNonPublic = terror.ClassTable.New(codeColumnStateNonPublic, "can not use non-public column") // ErrIndexStateCantNone returns for index none state. ErrIndexStateCantNone = terror.ClassTable.New(codeIndexStateCantNone, "index can not be in none state") // ErrInvalidRecordKey returns for invalid record key. ErrInvalidRecordKey = terror.ClassTable.New(codeInvalidRecordKey, "invalid record key") )
var MockTableFromMeta func(tableInfo *model.TableInfo) Table
MockTableFromMeta only serves for test.
Functions ¶
func CastValue ¶
func CastValue(ctx context.Context, val types.Datum, col *model.ColumnInfo) (casted types.Datum, err error)
CastValue casts a value based on column type.
func CastValues ¶
CastValues casts values based on columns type.
func CheckNotNull ¶
CheckNotNull checks if row has nil value set to a column with NotNull flag set.
func ColDescFieldNames ¶
ColDescFieldNames returns the fields name in result set for desc and show columns.
func GetColDefaultValue ¶
GetColDefaultValue gets default value of the column.
func GetZeroValue ¶
func GetZeroValue(col *model.ColumnInfo) types.Datum
GetZeroValue gets zero value for given column type.
Types ¶
type ColDesc ¶
type ColDesc struct {
Field string
Type string
Collation string
Null string
Key string
DefaultValue interface{}
Extra string
Privileges string
Comment string
}
ColDesc describes column information like MySQL desc and show columns do.
func NewColDesc ¶
NewColDesc returns a new ColDesc for a column.
type Column ¶
type Column model.ColumnInfo
Column provides meta data describing a table column.
func FindOnUpdateCols ¶
FindOnUpdateCols finds columns which have OnUpdateNow flag.
func ToColumn ¶
func ToColumn(col *model.ColumnInfo) *Column
ToColumn converts a *model.ColumnInfo to *Column.
func (*Column) CheckNotNull ¶
CheckNotNull checks if nil value set to a column with NotNull flag is set.
func (*Column) GetTypeDesc ¶
GetTypeDesc gets the description for column type.
func (*Column) IsPKHandleColumn ¶
IsPKHandleColumn checks if the column is primary key handle column.
func (*Column) ToInfo ¶
func (c *Column) ToInfo() *model.ColumnInfo
ToInfo casts Column to model.ColumnInfo
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