pixidb

package module

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Versions in this module

v0

v0.0.7

Feb 5, 2024

Changes in this version

type Store

+ func (s *Store) SetValueAt(column string, index int, val Value) error

type Table

+ func (t *Table) SetValue(column string, location Location, value Value) error

v0.0.6

Feb 4, 2024

Changes in this version

type CylindricalEquirectangularIndexer

+ Grid ProjectionlessIndexer

type MercatorCutoffIndexer

+ Grid ProjectionlessIndexer

v0.0.5

Feb 3, 2024

Changes in this version

type Value

+ func NewFloat32Value(val float32) Value

+ func NewFloat64Value(val float64) Value

+ func NewInt16Value(val int16) Value

+ func NewInt32Value(val int32) Value

+ func NewInt64Value(val int64) Value

+ func NewInt8Value(val int8) Value

+ func NewUint16Value(val uint16) Value

+ func NewUint32Value(val uint32) Value

+ func NewUint64Value(val uint64) Value

+ func NewUint8Value(val uint8) Value

v0.0.4

Jan 28, 2024

v0.0.3

Jan 28, 2024

Changes in this version

type Database

+ func (d *Database) Table(name string) *Table

v0.0.2

Jan 27, 2024

v0.0.1

Jan 21, 2024

Changes in this version

+ const ChecksumSize

+ const CreatedAt

+ const DataFileExt

+ const MaxPagesInCache

+ const MetadataFileExt

+ const ProjectionKey

+ const TableFileExt

+ var ErrZeroColumns = errors.New("cannot create a table with zero columns")

+ type Column struct

+ Default Value

+ Name string

+ Type ColumnType

+ func NewColumnEncoded(name string, ctype ColumnType, defval Value) Column

+ func NewColumnFloat32(name string, defval float32) Column

+ func NewColumnFloat64(name string, defval float64) Column

+ func NewColumnInt16(name string, defval int16) Column

+ func NewColumnInt32(name string, defval int32) Column

+ func NewColumnInt64(name string, defval int64) Column

+ func NewColumnInt8(name string, defval int8) Column

+ func NewColumnUint16(name string, defval uint16) Column

+ func NewColumnUint32(name string, defval uint32) Column

+ func NewColumnUint64(name string, defval uint64) Column

+ func NewColumnUint8(name string, defval uint8) Column

+ func NewColumnUnencoded(name string, ctype ColumnType, defval any) Column

+ func (c Column) EncodeValue(val any) Value

+ func (c Column) Size() int

+ type ColumnNotFoundError struct

+ Column string

+ Store string

+ func NewColumnNotFoundError(store string, column string) *ColumnNotFoundError

+ func (c ColumnNotFoundError) Error() string

+ type ColumnProjection struct

+ type ColumnType int16

+ const ColumnTypeFloat32

+ const ColumnTypeFloat64

+ const ColumnTypeInt16

+ const ColumnTypeInt32

+ const ColumnTypeInt64

+ const ColumnTypeInt8

+ const ColumnTypeUint16

+ const ColumnTypeUint32

+ const ColumnTypeUint64

+ const ColumnTypeUint8

+ func (c ColumnType) EncodeValue(val any) Value

+ func (c ColumnType) Size() int

+ type CylindricalEquirectangularIndexer struct

+ Parallel float64

+ func NewCylindricalEquirectangularIndexer(parallel float64, width int, height int, rowMajor bool) CylindricalEquirectangularIndexer

+ func (c CylindricalEquirectangularIndexer) Name() string

+ func (c CylindricalEquirectangularIndexer) Projection() flatsphere.Projection

+ func (c CylindricalEquirectangularIndexer) Size() int

+ func (c CylindricalEquirectangularIndexer) ToIndex(loc Location) (int, error)

+ type Database struct

+ func NewDatabase(dbPath string) (*Database, error)

+ func OpenDatabase(dbPath string) (*Database, error)

+ func (d *Database) Checkpoint() error

+ func (d *Database) Create(tableName string, indexer LocationIndexer, columns ...Column) error

+ func (d *Database) Drop(tableName string) error

+ func (d *Database) GetColumns(tableName string) ([]Column, error)

+ func (d *Database) GetMetadata(tableName string, key string) (string, error)

+ func (d *Database) GetRows(tableName string, columns []string, locations ...Location) (ResultSet, error)

+ func (d *Database) GetTableNames() ([]string, error)

+ func (d *Database) SetMetadata(tableName string, key string, value string) error

+ func (d *Database) SetRows(tableName string, columns []string, locations []Location, values [][]Value) (int, error)

+ type FlatHealpixIndexer struct

+ Order healpix.HealpixOrder

+ Scheme healpix.HealpixScheme

+ func NewFlatHealpixIndexer(order healpix.HealpixOrder, scheme healpix.HealpixScheme) FlatHealpixIndexer

+ func (h FlatHealpixIndexer) Name() string

+ func (h FlatHealpixIndexer) Projection() flatsphere.Projection

+ func (h FlatHealpixIndexer) Size() int

+ func (h FlatHealpixIndexer) ToIndex(loc Location) (int, error)

+ type GridLocation struct

+ X int

+ Y int

+ type IndexLocation int

+ type Location interface

+ type LocationIndexer interface

+ Name func() string

+ Projection func() flatsphere.Projection

+ Size func() int

+ ToIndex func(Location) (int, error)

+ type LocationNotSupportedError struct

+ Location Location

+ Projection string

+ func NewLocationNotSupportedError(projection string, location Location) *LocationNotSupportedError

+ func (l LocationNotSupportedError) Error() string

+ type LocationOutOfBoundsError struct

+ Location Location

+ func NewLocationOutOfBoundsError(location Location) LocationOutOfBoundsError

+ func (l LocationOutOfBoundsError) Error() string

+ type MercatorCutoffIndexer struct

+ NorthCutoff float64

+ SouthCutoff float64

+ func NewMercatorCutoffIndexer(northCutoff float64, southCutoff float64, width int, height int, rowMajor bool) MercatorCutoffIndexer

+ func (m MercatorCutoffIndexer) Name() string

+ func (m MercatorCutoffIndexer) Projection() flatsphere.Projection

+ func (m MercatorCutoffIndexer) Size() int

+ func (m MercatorCutoffIndexer) ToIndex(loc Location) (int, error)

+ type NestLocation int

+ type Page struct

+ type Pagemaster struct

+ func NewPagemaster(path string, maxCache int) *Pagemaster

+ func (p *Pagemaster) ClearCache()

+ func (p *Pagemaster) FlushAllPages() error

+ func (p *Pagemaster) FlushPage(pageIndex int) error

+ func (p *Pagemaster) GetChunk(pageIndex int, offset int, size int) ([]byte, error)

+ func (p *Pagemaster) GetPage(pageIndex int) ([]byte, error)

+ func (p *Pagemaster) Initialize(pages int, page []byte) error

+ func (p *Pagemaster) LoadPage(pageIndex int) ([]byte, error)

+ func (p *Pagemaster) MaxPagesInCache() int

+ func (p *Pagemaster) PageSize() int

+ func (p *Pagemaster) PagesInCache() int

+ func (p *Pagemaster) SetChunk(pageIndex int, offset int, chunk []byte) error

+ func (p *Pagemaster) SetPage(pageIndex int, page []byte) error

+ type ProjectedLocation struct

+ X float64

+ Y float64

+ type Projection []ColumnProjection

+ type ProjectionlessIndexer struct

+ Height int

+ RowMajor bool

+ Width int

+ func NewProjectionlessIndexer(width int, height int, rowMajor bool) ProjectionlessIndexer

+ func (p ProjectionlessIndexer) Name() string

+ func (p ProjectionlessIndexer) Projection() flatsphere.Projection

+ func (p ProjectionlessIndexer) Size() int

+ func (p ProjectionlessIndexer) ToIndex(loc Location) (int, error)

+ type RectangularLocation struct

+ X float64

+ Y float64

+ Z float64

+ func (r RectangularLocation) ToSpherical() SphericalLocation

+ type ResultSet struct

+ Columns []Column

+ Rows [][]Value

+ type RingLocation int

+ type Row []byte

+ func (r Row) Project(proj Projection) []Value

+ type SphericalLocation struct

+ Latitude float64

+ Longitude float64

+ type Store struct

+ ColumnSet []Column

+ Name string

+ Rows int

+ func NewStore(path string, rows int, columns []Column) (*Store, error)

+ func OpenStore(path string) (*Store, error)

+ func (s *Store) Checkpoint() error

+ func (s *Store) DefaultRow() []byte

+ func (s *Store) Drop() error

+ func (s *Store) FilterColumns(proj Projection) []Column

+ func (s *Store) GetRowAt(index int) (Row, error)

+ func (s *Store) GetValueAt(index int) (Value, error)

+ func (s *Store) Path() string

+ func (s *Store) Projection(columns ...string) (Projection, error)

+ func (s *Store) RowSize() int

+ func (s *Store) RowsPerPage() int

+ func (s *Store) SetRowAt(index int, row Row) error

+ type Table struct

+ Indexer LocationIndexer

+ IndexerName string

+ Metadata map[string]string

+ func NewTable(path string, indexer LocationIndexer, columns []Column) (*Table, error)

+ func OpenTable(path string) (*Table, error)

+ func (t *Table) Checkpoint() error

+ func (t *Table) Drop() error

+ func (t *Table) GetRows(projectedColumns []string, locations ...Location) (ResultSet, error)

+ func (t *Table) Name() string

+ func (t *Table) Path() string

+ func (t *Table) SetMetadata(key string, value string) error

+ func (t *Table) SetRows(columns []string, locations []Location, values [][]Value) (int, error)

+ func (t *Table) UnmarshalJSON(b []byte) error

+ type TableNotFoundError struct

+ Table string

+ func NewTableNotFoundError(tableName string) TableNotFoundError

+ func (t TableNotFoundError) Error() string

+ type UniqueLocation int

+ type Value []byte

+ func (v Value) AsFloat32() float32

+ func (v Value) AsFloat64() float64

+ func (v Value) AsInt16() int16

+ func (v Value) AsInt32() int32

+ func (v Value) AsInt64() int64

+ func (v Value) AsInt8() int8

+ func (v Value) AsUint16() uint16

+ func (v Value) AsUint32() uint32

+ func (v Value) AsUint64() uint64

+ func (v Value) AsUint8() uint8

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