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database

package

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Versions in this module

v0

v0.2.1

Mar 10, 2023

v0.2.0

Mar 2, 2023

Changes in this version

+ const FossilDBVersion

+ func MigrateDatabaseIfNeeded(p string) error

type Database

+ STime time.Time

+ SchemaLookup []schema.Object

+ func (d *Database) SchemaForTopic(topic string) schema.Object

+ func (db *Database) Stats() Stats

type Entry

+ Schema string

+ type Stats struct

+ Segments int

+ SerializeTime time.Time

+ TopicCount int

v0.1.5

Jan 9, 2023

v0.1.4

Dec 29, 2022

v0.1.3

Dec 20, 2022

v0.1.2

Dec 18, 2022

v0.1.1

Dec 17, 2022

v0.1.0

Dec 8, 2022

Changes in this version

+ const IndexSize

+ const SegmentSize

+ type Database struct

+ Current int

+ Name string

+ Path string

+ Segments []Segment

+ TopicCount int

+ TopicLookup []string

+ Topics map[string]int

+ Version int

+ func NewDatabase(log zerolog.Logger, name string, location string) (*Database, error)

+ func (d *Database) AddTopic(topic string) int

+ func (d *Database) Append(data []byte, topic string)

+ func (d *Database) Retrieve(q Query) []Entry

+ type Datum struct

+ Data []byte

+ Delta time.Duration

+ TopicID int

+ type Entries []Entry

+ type Entry struct

+ Data []byte

+ Time time.Time

+ Topic string

+ func ParseEntry(s string) (Entry, error)

+ func (e *Entry) ToString() string

+ type Filter func(Entries) Entries

+ type Filters []Filter

+ func (f *Filters) Execute() Result

+ type Query struct

+ Quantifier string

+ Range *TimeRange

+ RangeSemantics string

+ Topics []string

+ type Result struct

+ Data Entries

+ type Segment struct

+ HeadTime time.Time

+ Series [SegmentSize]Datum

+ Size int

+ func (s *Segment) Append(d *Datum) (bool, error)

+ func (s *Segment) FindApproximateDatum(desired time.Time) (int, Datum)

+ type TimeRange struct

+ End time.Time

+ Start time.Time

+ type WriteAheadLog struct

+ LogPath string

+ func (w *WriteAheadLog) AddEvent(d *Datum)

+ func (w *WriteAheadLog) AddSegment(t time.Time)

+ func (w *WriteAheadLog) AddTopic(t string)

+ func (w *WriteAheadLog) ApplyToDB(d *Database)