[BUG]: null is not an object (evaluating 'row[columnIndex]')

[Richie-Z]

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What version of drizzle-orm are you using?

1.0.0-beta.22

What version of drizzle-kit are you using?

1.0.0-beta.22

Other packages

Describe the Bug

What is the undesired behavior?

Using db.select() a PostgreSQL table crashes with TypeError: null is not an object (evaluating 'row[columnIndex]') inside mapResultRow in drizzle-orm/utils.js. This happens consistently on every query against the affected table, even with explicit column selection.
Additionally, when using timestamp({ mode: "string" }) columns, a secondary crash occurs in mapFromDriverValue with TypeError: undefined is not an object (evaluating 'value.toISOString')

What are the steps to reproduce it?-

• Define a pgTable with text() columns (used for datetime storage)

export const admin_sessions = pgTable(
  "admin_sessions",
  {
    id: text()
      .primaryKey()
      .$defaultFn(() => crypto.randomUUID()),
    admin_user_id: text()
      .notNull()
      .references(() => admin_users.id, { onDelete: "cascade" }),
    token: text().notNull().unique(),
    expires_at: text().notNull(),
    created_at: text().notNull().default(sql`now()`),
    ip_address: text(),
    user_agent: text(),
  },
  (t) => [
    index("idx_admin_sessions_token").on(t.token),
    index("idx_admin_sessions_user_id").on(t.admin_user_id),
  ],
);

• Run DB

    async getByToken(token: string): Promise<AdminSessionModel | undefined> {
    try {
      const result = await db
        .select()
        .from(admin_sessions)
        .where(eq(admin_sessions.token, token))
        .limit(1);
      return result[0];
    } catch (ex) {
      console.error(ex);
      throw ex;
    }
  }

What is the desired result?

db.select() should return mapped rows correctly without crashing.

Additional context:

• Database engine: PostgreSQL
• Driver: bun:sql
• Runtime: bun@1.3.13
• Drizzle version: 1.0.0-beta.22
• Monorepo: Yes