generateMySQLMigration() — drizzle-orm Function Reference

Architecture documentation for the generateMySQLMigration() function in api.ts from the drizzle-orm codebase.

Function typescript DrizzleKit CLIWorkflow calls 1

Entity Profile

DrizzleKit→ CLIWorkflow→ generateMySQLMigration() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  3334c70a_3efc_ac6c_11fa_8ac2c3304af4["generateMySQLMigration()"]
  e668bfef_9125_1ef0_2f94_a0f9605584bd["api.ts"]
  3334c70a_3efc_ac6c_11fa_8ac2c3304af4 -->|defined in| e668bfef_9125_1ef0_2f94_a0f9605584bd
  f3976464_9993_b7cc_1cb7_d8087b203650["squashMysqlScheme()"]
  3334c70a_3efc_ac6c_11fa_8ac2c3304af4 -->|calls| f3976464_9993_b7cc_1cb7_d8087b203650
  style 3334c70a_3efc_ac6c_11fa_8ac2c3304af4 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-kit/src/api.ts lines 384–407

export const generateMySQLMigration = async (
	prev: DrizzleMySQLSnapshotJSON,
	cur: DrizzleMySQLSnapshotJSON,
) => {
	const { applyMysqlSnapshotsDiff } = await import('./snapshotsDiffer');

	const validatedPrev = mysqlSchema.parse(prev);
	const validatedCur = mysqlSchema.parse(cur);

	const squashedPrev = squashMysqlScheme(validatedPrev);
	const squashedCur = squashMysqlScheme(validatedCur);

	const { sqlStatements } = await applyMysqlSnapshotsDiff(
		squashedPrev,
		squashedCur,
		tablesResolver,
		columnsResolver,
		mySqlViewsResolver,
		validatedPrev,
		validatedCur,
	);

	return sqlStatements;
};