fleDisableSubstringPreviewParameterLimits

Definition

fleDisableSubstringPreviewParameterLimits

New in version 8.2.

mongod

Overrides the string length limitations for substring queries on Queryable Encryption enabled collections.

You can only set fleDisableSubstringPreviewParameterLimits on mongos or a replica set primary. The value is set cluster-wide.

Syntax

To set fleDisableSubstringPreviewParameterLimits for your deployment, run the following command on the admin database:

db.adminCommand(
   {
      setClusterParameter: {
         fleDisableSubstringPreviewParameterLimits: { shouldOverride: true }
      }
   }
)

To view the current value, run the following command on the admin database:

db.adminCommand( { getClusterParameter: "fleDisableSubstringPreviewParameterLimits" } )

Behavior

By default, MongoDB enforces soft limits for Queryable Encryption encrypted string fields with substring queries enabled:

• strMaxLength is limited to 60 characters

• strMaxQueryLength is limited to 10 characters

• strMinQueryLength must be 2 or higher

This parameter overrides these restrictions.