Self reference guard in schema compiler

Description

   foo: {
      sql: `${foo}`,
      type: `string`
    },

Contributor guide

Tech stack

rust

Domain

backend

Issue type

bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

fresh

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

RustSchema compiler internals

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

35

Research direction

The issue is about a self referencing schema causing a 'Maximum call stack size exceeded' error. Look for the schema compilation logic in the codebase, likely in files related to schema parsing or compilation. Add a guard to detect self references or limit recursion depth during schema compilation. Check if there is existing cycle detection and extend it to handle this case. Consider adding a depth counter to prevent infinite recursion.