internal/functions/Test-SqlQueryComplete.ps1

function Test-SqlQueryComplete {
    param (
        [Alias("SqlInstance", "SqlServer")]
        [object]$server,
        [string]$sql,
        [switch]$checkpid
    )

    if ($checkpid) {
        $sqlpid = " and session_id = $sqlpid"
    }

    $sqlpid = $server.ConnectionContext.ProcessID
    $sqlpid = " and session_id = $sqlpid"
    $sql = $sql.Replace("'", "''")
    $testsql = "select sqltext.text FROM sys.dm_exec_requests req CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS sqltext where text = '$sql' $sqlpid"

    if ($server.ConnectionContext.ExecuteScalar($testsql) -ne $null) {
        return $false
    } else {
        return $true
    }
}