Custom MetaData Type SOQL not giving proper results
Trailblazer Community

Custom MetaData Type SOQL not giving proper results

Apex

Last updated 22 days ago ·Reference W-5657811 ·Reported By 41 users

Scheduled - Summer '20

Summary
When using the result of filtering(where) in for() statement with Custom Metadata Type
Filtered result is not appropriate result . It processes records that are not targets

Repro
1. Create Custom Metadata Type(Setup-> Develop-> Custom Metadata Types-> [New Custom Metadata Type])
Label: testcm
Plural Label: testcms
ObjectName: testcm

2. Create Custom Field in this CustomMetadataType(testcm__mdt)
Type: text
Field Label:testfild1

3. Click [Manage Records] and create 205 records in this CustomMetadataType(testcm__mdt)
Set the initial value of custom field to "1"

4. Set the value of the custom field of three records to "0"(e.g. test1, test2, test3 are set to 0)
5. Launch Workbench and [Apex Execute] (utilities-> Apex Execute)
6. Run the following code
for (testcm__mdt temp: [SELECT Id,MasterLabel,testfld1__c FROM testcm__mdt where testfld1__c='1']) {
if(temp.testfld1__c == '0'){
system.debug('***');
}
}

7. You can see debug log as test1, test2, test3 record IDs, this issues occurs when the record is 200 or more

Workaround
You can avoid the issues by changing it as follows

----> FROM

for (testcm__mdt temp: [SELECT Id,MasterLabel,testfld1__c FROM testcm__mdt where testfld1__c='1']) {
if(temp.testfld1__c == '0'){
system.debug(temp.Id);
}
}

----> TO

testcm__mdt[] foo = [SELECT Id,MasterLabel,testfld1__c FROM testcm__mdt where testfld1__c='1'];
for (testcm__mdt temp: foo) {
if(temp.testfld1__c == '0'){
system.debug(temp.Id);
}
}

Is it Fixed?

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