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drill

package module

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Versions in this module

v1

v1.2.0

Mar 21, 2022

v1.1.0

Sep 21, 2020

Changes in this version

+ func ColMetaToArrowField(c ColumnMeta) arrow.Field

+ type ColumnMeta interface

+ GetCharMaxLength func() int32

+ GetCharOctetLength func() int32

+ GetColumnName func() string

+ GetColumnSize func() int32

+ GetDataType func() string

+ GetDateTimePrecision func() int32

+ GetDefaultValue func() string

+ GetIntervalPrecision func() int32

+ GetIntervalType func() string

+ GetIsNullable func() bool

+ GetNumericPrecision func() int32

+ GetNumericPrecisionRadix func() int32

+ GetNumericScale func() int32

v1.0.0

Sep 18, 2020

Changes in this version

+ const TypeLogical

+ const TypePhysical

+ const TypeSQL

+ var ErrQueryCancelled = errors.New("drill: query cancelled")

+ var ErrQueryFailed = errors.New("drill: query failed")

+ var ErrQueryUnknownState = errors.New("drill: query unknown state")

+ type ArrowBatch struct

+ func (a ArrowBatch) AffectedRows() (rows int32)

+ func (a ArrowBatch) GetVectors() []DataVector

+ func (a ArrowBatch) IsNullable(index int) bool

+ func (a ArrowBatch) NumCols() int

+ func (a ArrowBatch) NumRows() int32

+ func (a ArrowBatch) PrecisionScale(index int) (precision, scale int64, ok bool)

+ func (a ArrowBatch) TypeName(index int) string

+ type ArrowVectorWrapper struct

+ func (a ArrowVectorWrapper) GetNullBytemap() []byte

+ func (a ArrowVectorWrapper) GetRawBytes() []byte

+ func (a ArrowVectorWrapper) IsNull(index uint) bool

+ func (a ArrowVectorWrapper) Type() reflect.Type

+ func (a ArrowVectorWrapper) TypeLen() (int64, bool)

+ func (a ArrowVectorWrapper) Value(index uint) interface{}

+ type Client struct

+ Opts Options

+ ZkNodes []string

+ func NewClient(opts Options, zk ...string) *Client

+ func NewDirectClient(opts Options, host string, port int32) *Client

+ func (d *Client) Close() error

+ func (d *Client) Connect(ctx context.Context) error

+ func (d *Client) ConnectEndpoint(ctx context.Context, e Drillbit) error

+ func (d *Client) ConnectWithZK(ctx context.Context, zkNode ...string) error

+ func (d *Client) ExecuteStmt(hndl PreparedHandle) (DataHandler, error)

+ func (d *Client) GetCatalogs(pattern string, escape *string) ([]*user.CatalogMetadata, error)

+ func (d *Client) GetColumns(catalogPattern, schemaPattern, tablePattern, columnPattern string, ...) ([]*user.ColumnMetadata, error)

+ func (d *Client) GetEndpoint() Drillbit

+ func (d *Client) GetMetadata() (*user.ServerMeta, error)

+ func (d *Client) GetSchemas(catalogPattern, schemaPattern string, escape *string) ([]*user.SchemaMetadata, error)

+ func (d *Client) GetTables(catalogPattern, schemaPattern, tablePattern string, escape *string, ...) ([]*user.TableMetadata, error)

+ func (d *Client) NewConnection(ctx context.Context) (Conn, error)

+ func (d *Client) Ping(ctx context.Context) error

+ func (d *Client) PrepareQuery(plan string) (PreparedHandle, error)

+ func (d *Client) SubmitQuery(t QueryType, plan string) (DataHandler, error)

+ type Conn interface

+ Close func() error

+ Connect func(context.Context) error

+ ConnectEndpoint func(context.Context, Drillbit) error

+ ConnectWithZK func(context.Context, ...string) error

+ ExecuteStmt func(PreparedHandle) (DataHandler, error)

+ GetEndpoint func() Drillbit

+ NewConnection func(context.Context) (Conn, error)

+ Ping func(context.Context) error

+ PrepareQuery func(string) (PreparedHandle, error)

+ SubmitQuery func(QueryType, string) (DataHandler, error)

+ type DataHandler interface

+ Cancel func()

+ Close func() error

+ GetCols func() []string

+ GetRecordBatch func() RowBatch

+ Next func() (RowBatch, error)

+ type DataVector data.DataVector

+ type Drillbit interface

+ GetAddress func() string

+ GetUserPort func() int32

+ type NullableDataVector data.NullableDataVector

+ type Options struct

+ ApplicationName string

+ Auth string

+ ClusterName string

+ HeartbeatFreq *time.Duration

+ Passwd string

+ SaslEncrypt bool

+ Schema string

+ ServiceHost string

+ ServiceName string

+ SupportComplexTypes bool

+ UseArrow bool

+ User string

+ ZKPath string

+ type PreparedHandle interface

+ type QueryType shared.QueryType

+ type ResultHandle struct

+ func (r *ResultHandle) Cancel()

+ func (r *ResultHandle) Close() error

+ func (r *ResultHandle) GetCols() []string

+ func (r *ResultHandle) GetRecordBatch() RowBatch

+ func (r *ResultHandle) Next() (RowBatch, error)

+ type RowBatch interface

+ AffectedRows func() int32

+ ColumnName func(i int) string

+ GetVectors func() []DataVector

+ IsNullable func(index int) bool

+ NumCols func() int

+ NumRows func() int32

+ PrecisionScale func(index int) (precision, scale int64, ok bool)

+ TypeName func(index int) string