laravel/framework · error · RuntimeException
The chunkById operation was aborted because the
Error message
The chunkById operation was aborted because the [{$alias}] column is not present in the query result. What it means
RuntimeException from chunkById() when, after fetching a chunk, the configured alias/id column cannot be read from the last result row (data_get returns null). chunkById paginates by remembering the last id, so a missing id column makes safe pagination impossible and the operation aborts to avoid silent skips/duplicates.
Solutions
- Ensure the id/alias column is in the SELECT list: ->select(['id', 'name'])->chunkById(...).
- Pass the matching $alias argument equal to the column actually returned by the query.
- Use chunk() (page-based) if you intentionally select without the id, accepting its caveats.
- If using a custom primary key, pass $column = 'your_pk' and $alias = 'your_pk' consistently.
Example fix
// before
User::select('email')->chunkById(500, function ($rows) {
// ...
});
// after
User::select(['id', 'email'])->chunkById(500, function ($rows) {
// ...
}); Defensive patterns
Strategy: validation
Validate before calling
// Ensure the chunk column is part of the SELECT before chunkById.
$alias = 'id';
$selected = $query->columns ?: ['*'];
if ($selected !== ['*'] && ! in_array($alias, $selected, true)) {
$query->select(array_merge($selected, [$alias]));
}
$query->chunkById(500, $callback, $alias); Type guard
function chunkColumnIsSelected(\Illuminate\Database\Eloquent\Builder $q, string $alias): bool
{
$cols = $q->getQuery()->columns;
return $cols === null || in_array('*', $cols, true) || in_array($alias, $cols, true);
} Try / catch
try {
$query->chunkById($size, $callback, $alias);
} catch (\RuntimeException $e) {
if (str_contains($e->getMessage(), 'column is not present in the query result')) {
// add the alias column to select() and restart
}
throw $e;
} Prevention
- When restricting columns for chunkById/lazyById, always include the primary key or alias.
- If aliasing the id (e.g. 'id as pk'), pass $alias='pk' to chunkById().
- Prefer chunk()/lazy() over *ById() when you intentionally drop the id column.
When it happens
Trigger: Calling ->select('name')->chunkById(100, ...) so the id column is not selected; passing a custom $alias that does not match any selected column; using chunkById on a query with a custom alias for the primary key that the result rows do not expose; raw expressions hiding the id.
Common situations: Optimizing a query to select only specific columns and dropping the primary key; using chunkById on a UNION or subquery where the id column is aliased differently; passing $column but forgetting to also alias it in select().
Related errors
- The lazyById operation was aborted because the
- You must specify an orderBy clause when using this function.
- A subquery must be a query builder instance, a Closure, or…
- $count records were found.
- Illegal operator and value combination.
AI-assisted analysis of laravel/framework@e0f6eb3518 (2026-08-11).
Data as JSON: /api/errors/22d3ba1f502e4347.
Report an issue: GitHub.
Appendix: source
Thrown at src/Illuminate/Database/Concerns/BuildsQueries.php:214
if ($countResults === 0) {
break;
}
if (! is_null($remaining)) {
$remaining = max($remaining - $countResults, 0);
}
// On each chunk result set, we will pass them to the callback and then let the
// developer take care of everything within the callback, which allows us to
// keep the memory low for spinning through large result sets for working.
if ($callback($results, $page) === false) {
return false;
}
$lastId = data_get($results->last(), $alias);
if ($lastId === null) {
throw new RuntimeException("The chunkById operation was aborted because the [{$alias}] column is not present in the query result.");
}
unset($results);
$page++;
} while ($countResults == $count);
return true;
}
/**
* Execute a callback over each item while chunking by ID.
*
* @param callable(TValue, int): mixed $callback
* @param int $count
* @param string|null $column
* @param string|null $alias
* @return boolView on GitHub (pinned to e0f6eb3518)