可以在 laravel eloquent whereIn 子句中使用的数组的最大大小是多少？

Question

I am currently working in search based on relevancy of keyword. I have customers and their following fields.

 1. name
 2. designation
 3. address
 .
 ...

When search is made with keyword "Computer Engineer" Then My search displays customers in following order of matching,

1. both keyword match
2. first keyword match
3. second keyword match

In this way, I can get the list of customers.

I want to use the customer_id of search result list in other query like:

Model::whereIn('customer_id', $searchResultCustomerIds)->get();

There may be any number of customers in the search result based on no of customers in database. What is the maximum limit of size of array that can be used in eloquent whereIn clause?

Answer 1

Around 1500 entries. I think that is a Laravel limitation on eloquent. If the whereIn query return 0 results, do a whereRaw instead, like the following: (supposing the wherein is on id column)

Obs: NEVER use $query->get() on a extremely large query result. If you're expecting a big return, paginate or do a cursor().

// using cursor, for each item, laravel relases the item from the memory, if you do a ->get(), laravel stores everything at memory, you can down your server doing that.

foreach($query->cursor() as $item) {} 

// continuing

$ids = [1,2,3,4,........ 9000,9001,9002];
$query = Model::query();
$rawwhereIn = 'id IN (\'' . implode('\',\'', (array)$ids) . '\')';
$query->whereRaw($rawwhereIn);

foreach($query->cursor() as $item) {
   echo "$item->id found";
}