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Is it possible to output an aggregate query like this:

Map<Id, List<Contact>> accountContactsMap = [SELECT aggregate query ...];

Where the Map key is the AccountId and the Map value is a List of related Contact's for that Account?

If so, how should the query be constructed?

If not, what is the best approach to achieve this using apex?

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    Aggregate queries do not return individual records, but instead things like MIN, MAX, SUM, AVG, and COUNT values. You'd still be using a normal query, as explained in the answer.
    – sfdcfox
    Jan 16, 2019 at 16:46

1 Answer 1

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You an try following but it will count as 2 SOQL

Map<Id,Account> m = new Map<Id,Account> ([select id, name, (select id, name from Contacts) from account where id = ' your ACCOUNT ID']);

Account a = m.get('your ACCOUNT ID');

List<contact> cl = a.Contacts;

System.debug('***********'+cl);
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  • Why does it count as 2 SOQL?
    – Robs
    Jan 16, 2019 at 16:24
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    It's only one SOQL against the limits, not two.
    – sfdcfox
    Jan 16, 2019 at 16:44

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