rewrite having skip calc expr

[kosmgco]

What problem does this PR solve?

SOAR对于having语句的rewrite处理聚合函数存在问题 #63

What is changed and how it works?

RewriteHaving 时判断 having 的各个条件是否是计算列，如果为计算列则不替换到 where 子句

Check List

Tests

• Unit test go test -run ^TestRewriteHaving$ github.com/XiaoMi/soar/ast -test.v -count=1
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility