tests/Test-CmQueryExpensiveRule.ps1

function Test-CmQueryExpensiveRule {
    [CmdletBinding()]
    param (
        [parameter()][string] $TestName = "Expensive Query Membership Rules",
        [parameter()][string] $TestGroup = "configuration",
        [parameter()][string] $Description = "Check for queries which are expensive to process",
        [parameter()][hashtable] $ScriptParams
    )
    try {
        $startTime = (Get-Date)
        #[int]$Setting = Get-CmHealthDefaultValue -KeySet "keygroup:keyname" -DataSet $CmHealthConfig
        [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed
        $stat   = "PASS" # do not change this
        $except = "WARNING" # or "FAIL"
        $msg  = "No issues found" # do not change this either
        $query = "select CollectionName,SiteID,QueryName,SQL,WQL
from dbo.Collection_Rules_SQL c1
INNER JOIN dbo.Collection_Rules c2 ON c1.CollectionID = c2.CollectionID
INNER JOIN v_Collections c3 ON c1.CollectionID = c3.CollectionID
where c3.SiteID not like 'SMS%'"

        $res = Get-CmSqlQueryResult -Query $query -Params $ScriptParams
        foreach ($row in $res) {
            if ($row.SQL -match 'like \''%\w\w+.|%''') {
                $stat = $except
                $tempdata.Add(
                    [pscustomobject]@{
                        QueryName = $row.QueryName
                        Collection = $row.CollectionName
                        CollectionID = $row.SiteID
                        Message = "LIKE with a leading wildcard"
                        Query = $row.WQL
                    }
                )
            } elseif ('like N\''%\w\w+.|%''') {
                $stat = $except
                $tempdata.Add(
                    [pscustomobject]@{
                        QueryName = $row.QueryName
                        Collection = $row.CollectionName
                        CollectionID = $row.SiteID
                        Message = "LIKE with a leading wildcard"
                        Query = $row.WQL
                    }
                )
            }
        } # foreach
        if ($tempdata.Count -gt 0) {
            $stat = $except
            $msg  = "$($tempdata.Count) expensive queries were found"
        }
    }
    catch {
        $stat = 'ERROR'
        $msg = $_.Exception.Message -join ';'
    }
    finally {
        Write-Output $([pscustomobject]@{
            TestName    = $TestName
            TestGroup   = $TestGroup
            TestData    = $tempdata
            Description = $Description
            Status      = $stat
            Message     = $msg
            RunTime     = $(Get-RunTime -BaseTime $startTime)
            Credential  = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME })
        })
    }
}