AppendToNullabilityMap Type — drizzle-orm Architecture

Architecture documentation for the AppendToNullabilityMap type/interface in select.types.ts from the drizzle-orm codebase.

Type typescript

Entity Profile

Dependency Diagram

graph TD
  6e51fc63_6683_358f_aba4_6ae29bb19e3e["AppendToNullabilityMap"]
  7e7f8434_4765_0a70_b7fa_d197dd2fa706["select.types.ts"]
  6e51fc63_6683_358f_aba4_6ae29bb19e3e -->|defined in| 7e7f8434_4765_0a70_b7fa_d197dd2fa706
  style 6e51fc63_6683_358f_aba4_6ae29bb19e3e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-orm/src/query-builders/select.types.ts lines 137–147

export type AppendToNullabilityMap<
	TJoinsNotNull extends Record<string, JoinNullability>,
	TJoinedName extends string | undefined,
	TJoinType extends JoinType,
> = TJoinedName extends string ? 'left' extends TJoinType ? TJoinsNotNull & { [name in TJoinedName]: 'nullable' }
	: 'right' extends TJoinType ? SetJoinsNullability<TJoinsNotNull, 'nullable'> & { [name in TJoinedName]: 'not-null' }
	: 'inner' extends TJoinType ? TJoinsNotNull & { [name in TJoinedName]: 'not-null' }
	: 'cross' extends TJoinType ? TJoinsNotNull & { [name in TJoinedName]: 'not-null' }
	: 'full' extends TJoinType ? SetJoinsNullability<TJoinsNotNull, 'nullable'> & { [name in TJoinedName]: 'nullable' }
	: never
	: TJoinsNotNull;

Defined In

drizzle-orm/src/query-builders/select.types.ts

Source

View on GitHub

Frequently Asked Questions

What is the AppendToNullabilityMap type?

AppendToNullabilityMap is a type/interface in the drizzle-orm codebase, defined in drizzle-orm/src/query-builders/select.types.ts.

Where is AppendToNullabilityMap defined?

AppendToNullabilityMap is defined in drizzle-orm/src/query-builders/select.types.ts at line 137.

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