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Schema-System

BaraDB verwendet ein Schema-first Design mit Typvererbung und automatischen Migrationen.

Typen definieren

import barabadb/schema/schema

var s = newSchema()

let person = newType("Person")
person.addProperty("name", "str", required = true)
person.addProperty("age", "int32")
s.addType("default", person)

Typvererbung

let employee = newType("Employee")
employee.setBases(@["Person"])
employee.addProperty("department", "str")
s.addType("default", employee)

# Vererbung auflösen — Employee erhält name, age, department
let resolved = s.resolveInheritance(employee)

Schema-Operationen

Diff

Zwei Schemata vergleichen:

let diff = s.diff(oldSchema, newSchema)

Migrationen

Schema-Änderungen werden verfolgt und können Migrationsskripte generieren.

Eigenschaftstypen

Typ Beschreibung
str String
int32 32-Bit Integer
int64 64-Bit Integer
float32 32-Bit Float
float64 64-Bit Float
bool Boolean
datetime Datums-/Zeitwert
bytes Binärdaten