test: capture bug

#941 (comment)

internal/dbtest/query_test.go

@@ -1001,6 +1001,14 @@ func TestQuery(t *testing.T) {
 		func(db *bun.DB) schema.QueryAppender {
 			return db.NewUpdate().Model(&Model{42, ""}).OmitZero()
 		},
+		func(db *bun.DB) schema.QueryAppender {
+			q := db.NewCreateTable().Model(new(Story)).WithForeignKeys()
+
+			// Check that building the query with .AppendQuery() multiple times does not add redundant FK constraints:
+			// https://github.com/uptrace/bun/pull/941#discussion_r1443647857
+			_ = q.String()
+			return q
+		},
 	}
 
 	timeRE := regexp.MustCompile(`'2\d{3}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(\.\d+)?(\+\d{2}:\d{2})?'`)

internal/dbtest/testdata/snapshots/TestQuery-mariadb-163

@@ -0,0 +1 @@
+CREATE TABLE `stories` (`id` BIGINT NOT NULL AUTO_INCREMENT, `name` VARCHAR(255), `user_id` BIGINT, PRIMARY KEY (`id`), FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-mssql2019-163

@@ -0,0 +1 @@
+CREATE TABLE "stories" ("id" BIGINT NOT NULL IDENTITY, "name" VARCHAR(255), "user_id" BIGINT, PRIMARY KEY ("id"), FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-mysql5-163

@@ -0,0 +1 @@
+CREATE TABLE `stories` (`id` BIGINT NOT NULL AUTO_INCREMENT, `name` VARCHAR(255), `user_id` BIGINT, PRIMARY KEY (`id`), FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-mysql8-163

@@ -0,0 +1 @@
+CREATE TABLE `stories` (`id` BIGINT NOT NULL AUTO_INCREMENT, `name` VARCHAR(255), `user_id` BIGINT, PRIMARY KEY (`id`), FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-pg-163

@@ -0,0 +1 @@
+CREATE TABLE "stories" ("id" BIGSERIAL NOT NULL, "name" VARCHAR, "user_id" BIGINT, PRIMARY KEY ("id"), FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-pgx-163

@@ -0,0 +1 @@
+CREATE TABLE "stories" ("id" BIGSERIAL NOT NULL, "name" VARCHAR, "user_id" BIGINT, PRIMARY KEY ("id"), FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON UPDATE NO ACTION ON DELETE NO ACTION)

internal/dbtest/testdata/snapshots/TestQuery-sqlite-163

@@ -0,0 +1 @@
+CREATE TABLE "stories" ("id" INTEGER NOT NULL, "name" VARCHAR, "user_id" INTEGER, PRIMARY KEY ("id"), FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON UPDATE NO ACTION ON DELETE NO ACTION)

query_table_create.go

@@ -372,3 +372,12 @@ func (q *CreateTableQuery) afterCreateTableHook(ctx context.Context) error {
 	}
 	return nil
 }
+
+func (q *CreateTableQuery) String() string {
+	buf, err := q.AppendQuery(q.db.Formatter(), nil)
+	if err != nil {
+		panic(err)
+	}
+
+	return string(buf)
+}