db_xml.py: into_table_name(): Removed no longer necessary handling of simple functions, which is now done by sql.into_table_name(). Ensure that rank params in functions (not tables) are not treated specially as hierarchical.

sql.py: put_table(): If into == None: For function calls, include the arguments in the into table name

sql_gen.py: to_name_only_col(): Support non-Col Code inputs

sql_gen.py CompareCond.to_str(), callers of combine_conds(): Removed unnecessary grouping () to make SQL clearer

sql_gen.py: Added combine_conds() and use it in Join.to_str() and sql.py mk_select()

sql_gen.py Join.to_str(), sql.py mk_select(): Combining conditions: Don't add newlines where not needed, so that output is less vertically spread out

sql_gen.py: is_safe_name(): Fixed bug where names starting with a digit were incorrectly considered safe

sql.py: put_table(): Separate temp table names from into table name with "_" instead of "-" so that quoting the table name will usually be unnecessary

sql.py: esc_name_by_module(): Remove unused param ignore_case

sql_gen.py: esc_name(): If is_safe_name(), just return name, to avoid escessive escaping in debug output for Redmine