Function extractEqualityField

packages/db/src/query/predicate-utils.ts:1213–1226

(func: Func)

}

function extractEqualityField(func: Func): ComparisonField | null {
  if (func.name === `eq`) {
    const firstArg = func.args[0]
    const secondArg = func.args[1]

    if (firstArg?.type === `ref` && secondArg?.type === `val`) {
      return {
        ref: firstArg,
        value: secondArg.value,
      }
    }
  }
  return null
}

interface InField {
  ref: PropRef