Function performSql

performSql(
    statement: ParkSql,
    selection: BackendSelection,
    exec?: (
        selection: BackendSelection,
        sql: string,
        params?: readonly unknown[],
        deps?: PgDeps,
    ) => Promise<BackendResult>,
): Promise<Uint8Array<ArrayBufferLike>>
One statement against the external database, answered in one JSON shape on both outcomes: a failure becomes a database error in Drupal, where a throw would freeze the chain.
Parameters
- statement: ParkSql
- selection: BackendSelection
- exec: (
      selection: BackendSelection,
      sql: string,
      params?: readonly unknown[],
      deps?: PgDeps,
  ) => Promise<BackendResult> = backendExec
  - (
        selection: BackendSelection,
        sql: string,
        params?: readonly unknown[],
        deps?: PgDeps,
    ): Promise<BackendResult>
    
    Runs one statement and answers in the host's own result shape.
    
    pg uses rowCount for both reads and writes (measured on PostgreSQL 17.6), so a statement with no rows and a count is a write. These counts are not a Cloudflare meter: an external database is not metered per row.
    
    Parameters
    
    selection: BackendSelection
    
    sql: string
    
    params: readonly unknown[] = []
    
    deps: PgDeps = DEFAULT_PG_DEPS
    
    Returns Promise<BackendResult>
Returns Promise<Uint8Array<ArrayBufferLike>>
- Defined in src/ops/park-drive.ts:582