def compile_sql_token_mysql(compile, expr, state): """MySQL uses ` as the escape character by default.""" if is_safe_token(expr) and not compile.is_reserved_word(expr): return expr return '`%s`' % expr.replace('`', '``')
def is_sql_identifier(identifier): return (not expr_compile.is_reserved_word(identifier) and is_safe_token(identifier))