Optimize boolean filter SQL generation for non-nullable bool fields

[michaelstaib]

Fixes #9124

[github-actions]

Fusion Gateway Performance Results

Simple Composite Query

	Req/s	Err%
Constant (50 VUs)	2998.97	0.00%
Ramping (0-500-0 VUs)	3282.83	0.00%

Response Times & Query

	Min	Med	Avg	P90	P95	Max
Constant	0.78ms	14.44ms	16.45ms	30.86ms	36.13ms	172.49ms
Ramping	0.70ms	66.23ms	67.86ms	126.33ms	142.59ms	249.18ms

query TestQuery {
  topProducts(first: 5) {
    inStock
    name
    price
    shippingEstimate
    upc
    weight
    reviews {
      id
      body
      author {
        id
        username
        name
      }
    }
  }
}

---

Deep Recursion Query

	Req/s	Err%
Constant (50 VUs)	745.78	0.00%
Ramping (0-500-0 VUs)	826.13	0.00%

Response Times & Query

	Min	Med	Avg	P90	P95	Max
Constant	9.02ms	62.47ms	65.51ms	81.32ms	89.84ms	337.65ms
Ramping	1.86ms	252.52ms	261.10ms	514.07ms	557.92ms	705.23ms

query TestQuery {
  users {
    id
    username
    name
    reviews {
      id
      body
      product {
        inStock
        name
        price
        shippingEstimate
        upc
        weight
        reviews {
          id
          body
          author {
            id
            username
            name
            reviews {
              id
              body
              product {
                inStock
                name
                price
                shippingEstimate
                upc
                weight
              }
            }
          }
        }
      }
    }
  }
  topProducts(first: 5) {
    inStock
    name
    price
    shippingEstimate
    upc
    weight
    reviews {
      id
      body
      author {
        id
        username
        name
        reviews {
          id
          body
          product {
            inStock
            name
            price
            shippingEstimate
            upc
            weight
          }
        }
      }
    }
  }
}

---

Variable Batching Throughput

	Req/s	Err%
Constant (50 VUs)	23556.39	0.00%
Ramping (0-500-0 VUs)	18522.03	0.00%

Response Times & Query

	Min	Med	Avg	P90	P95	Max
Constant	0.10ms	1.71ms	2.07ms	3.95ms	4.84ms	48.92ms
Ramping	0.10ms	9.36ms	11.38ms	23.52ms	28.26ms	104.16ms

query TestQuery($upc: ID!, $price: Long!, $weight: Long!) {
  productByUpc(upc: $upc) {
    inStock
    shippingEstimate(weight: $weight, price: $price)
  }
}

Variables (5 sets batched per request)

[
  { "upc": "1", "price": 899, "weight": 100 },
  { "upc": "2", "price": 1299, "weight": 1000 },
  { "upc": "3", "price": 15, "weight": 20 },
  { "upc": "4", "price": 499, "weight": 100 },
  { "upc": "5", "price": 1299, "weight": 1000 }
]

---

Run 22191716617 • Commit add8d8a • Thu, 19 Feb 2026 17:52:12 GMT