/**
* Return true if field is a primary key of the specified table, false otherwise
*
* @param tableAlias The alias of the table in the query
* @param field The pure name of the field
*/
private boolean isPkey(String tableAlias, String field) {
int tid1 = p.getTableId(tableAlias);
String pkey1 = Database.getCatalog().getPrimaryKey(tid1);
return pkey1.equals(field);
}
