refactor(migrate-ts): simplify check-evolution

dmealing · claude · dmealing · commit 156d9bbbdecb · 2026-06-01T00:53:33.000-04:00
Co-Authored-By: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/server/typescript/packages/migrate-ts/src/diff/index.ts b/server/typescript/packages/migrate-ts/src/diff/index.ts
@@ -135,9 +135,9 @@ export async function diff(
       // CHECK constraints are inlined into the CREATE TABLE DDL at emit time
       // (both postgres and sqlite support inline CHECK), so they ride on
       // `create-table.table.checks` rather than as separate add-check changes.
-      // The diff intentionally never produces add-check / drop-check today;
-      // existing-table enum-value evolution is deferred (see diffTableChecks
-      // removal note in Pass 2).
+      // For brand-new tables no add-check is emitted here; existing-table CHECK
+      // evolution (add/drop on tables present on both sides) is handled by
+      // diffTableChecks in Pass 2.
     }
   }
   // Pass 1b: tables present in actual but not expected → drop-table

Original file line number	Diff line number	Diff line change
`@@ -135,9 +135,9 @@ export async function diff(`
`135`	`135`	`// CHECK constraints are inlined into the CREATE TABLE DDL at emit time`
`136`	`136`	`// (both postgres and sqlite support inline CHECK), so they ride on`
`137`	`137`	// `create-table.table.checks` rather than as separate add-check changes.
`138`		`- // The diff intentionally never produces add-check / drop-check today;`
`139`		`- // existing-table enum-value evolution is deferred (see diffTableChecks`
`140`		`- // removal note in Pass 2).`
	`138`	`+ // For brand-new tables no add-check is emitted here; existing-table CHECK`
	`139`	`+ // evolution (add/drop on tables present on both sides) is handled by`
	`140`	`+ // diffTableChecks in Pass 2.`
`141`	`141`	`}`
`142`	`142`	`}`
`143`	`143`	`// Pass 1b: tables present in actual but not expected → drop-table`