Moved SQL code generation classes from sql.py to new sql_gen.py. sql_gen.py: Added Code, Literal, ValueCond, and CompareCond. sql.py: Removed Query because we will use a different approach.
Moved SQL code generation classes from sql.py to new sql_gen.py. sql_gen.py: Added Code, Literal, ValueCond, and CompareCond. sql.py: Removed Query because we will use a different approach.