Fields that are automatically indexed in Salesforce are:
- RecordTypeId
- Division
- CreatedDate
- Systemmodstamp (LastModifiedDate)
- Name
- Email (for contacts and leads)
- Foreign key relationships (lookups and master-detail)
- The unique Salesforce record ID, which is the primary key for each object.
Which fields are automatically indexed in Salesforce?
-Fields that are automatically indexed in Salesforce are:- ->Record Type Id ->Division ->Created Date ->Systemmodstamp (Last Modified Date) ->Name ->Email (for contacts and leads) ->Foreign key relationships (lookups and master-detail) ->The unique Salesforce record ID, which is that the primary key for every object.
What happens when a field is indexed?
When a field is indexed, its values are stored in a more efficient data structure. This takes up more space but improves performance when using two or more filters with indexed fields in a query. The fields indexed by default include: Primary Keys: Id, Name, Owner, Email (Contacts, Leads).
How do I create custom indexes in Salesforce sandbox?
Salesforce supports custom indexes to speed up queries, and you can create custom indexes by contacting Salesforce Customer Support. The custom indexes that Salesforce Customer Support creates in your production environment are copied to all sandboxes that you create from that production environment.
What types of fields are supported on custom indexes?
Custom indexes are supported on standard and custom fields [excluding multi-select picklists, currency fields in a multicurrency organization, text area (long), text area (rich), non-deterministic formula fields, and binary fields (blob, file, encrypted text)].
What is Salesforce multitenant architecture?
The Salesforce multitenant architecture makes the underlying data table for custom fields unsuitable for indexing. To overcome this limitation, the platform creates an index table that contains a copy of the data, along with information about the data types.
Can a two column index have nulls?
Two-column indexes can have nulls in the second column, whereas single-column indexes can’tunless Salesforce Customer Support explicitly enabled the option to include nulls. Previous. Next. Sorry, the document you are looking for doesn't exist or could not be retrieved.
Does the query optimizer use internal statistics?
All fields in the OR clause must be indexed for any index to be used. For LIKE, the query optimizer does not use its internal statistics table. Instead, it samples up to 100,000 records of actual data to decide whether to use the custom index. Custom indexes can be created on deterministic formula fields.
Standard Indexed Fields
I was recently doing some consulting for a company that works with Salesforce managed packages . They’d come across a problem that had turned into one heckuva knot they were having trouble unraveling. Turns out the issue had to do with some obscure details about Salesforce indexing of fields on its standard objects.
What happens if I need more indexed fields in Salesforce?
By default your primary keys, forgeign keys, custom fields marked as External Ids/Unique along with the system audit dates (like last modified) are indexed. If you have a specific field that you need indexed, you can reach out to Salesforce support.
How to self service an index field?
If it is a custom field you have added, you can self-service an index on a field by making it an "External ID" - click through the setup menu to customise the field and select the option from General Options.
Is a filter selective if it is indexed?
Even if a field is indexed a filter might still not be selective when: 1. The filter value includes null (for instance binding with a list that contains null) 2. Data skew exists whereby the number of matching rows is very large (for instance, filtering for a particular foreign key value that occurs many times) ...