function extractColumnAlias($node)
{
//is this a table type or colref/alias?
if ((isColref($node) || isFunction($node) || isExpression($node)) && isset($node['alias']['as'])) {
$partCounts = count($node['alias']['no_quotes']['parts']);
return $node['alias']['no_quotes']['parts'][$partCounts - 1];
} else {
//don't know what to do
return false;
}
}
/**
* @param mixed $variable
*
* @return bool
*/
function isObject($variable)
{
return is_object($variable) and !isFunction($variable);
}
