findAddedAndRemoved() — drizzle-orm Function Reference

Architecture documentation for the findAddedAndRemoved() function in utils.ts from the drizzle-orm codebase.

Function typescript DrizzleKit SnapshotSerializer called by 2

Entity Profile

DrizzleKit→ SnapshotSerializer→ findAddedAndRemoved() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  2b006da9_92ff_ab47_ba6c_8ec3d041f7e3["findAddedAndRemoved()"]
  5847e5ae_7b4a_4b02_b68f_883ef88b3c1a["utils.ts"]
  2b006da9_92ff_ab47_ba6c_8ec3d041f7e3 -->|defined in| 5847e5ae_7b4a_4b02_b68f_883ef88b3c1a
  f32c8b45_d102_ae2f_22ae_08f69039bd00["logSuggestionsAndReturn()"]
  f32c8b45_d102_ae2f_22ae_08f69039bd00 -->|calls| 2b006da9_92ff_ab47_ba6c_8ec3d041f7e3
  5e0b1139_8050_e207_b519_7736291ee6af["logSuggestionsAndReturn()"]
  5e0b1139_8050_e207_b519_7736291ee6af -->|calls| 2b006da9_92ff_ab47_ba6c_8ec3d041f7e3
  style 2b006da9_92ff_ab47_ba6c_8ec3d041f7e3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-kit/src/utils.ts lines 354–362

export function findAddedAndRemoved(columnNames1: string[], columnNames2: string[]) {
	const set1 = new Set(columnNames1);
	const set2 = new Set(columnNames2);

	const addedColumns = columnNames2.filter((it) => !set1.has(it));
	const removedColumns = columnNames1.filter((it) => !set2.has(it));

	return { addedColumns, removedColumns };
}