No results are displayed in the [Database Authentication success/failure rate] table in DedicatedSQLPool_workspace_v1.2.workbook.

[gse20is25g]

No results are displayed when I select [All Authentication] in the [Database Authentication success/failure rate] table in DedicatedSQLPool_workspace_v1.2.workbook.
Because when selecting [All Authentication] button, AuthResult parameter is '', so ksql condition is "where Succeeded == ''".

I think it would be good to fix it as follows,

1. the default value of AuthResult parameter is "true,false",
2. the value of AuthResult parameter when select [All Authentication] button is "true, false"
3. the condition in KQL changes "where Succeeded == '{AuthResult}'" to "where Succeeded in (AuthResult)"