canal.instance.filter.black.regex不生效

[qq592304796]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

environment

• canal version
  1.1.5
• mysql version
  polardb-8.0.1.1.28

Issue Description

https://help.aliyun.com/document_detail/212957.html?scm=20140722.S_help%40%40%E6%96%87%E6%A1%A3%40%40212957.S_0%2Bos.ID_212957-RL_access%E4%B8%AD%E8%A1%A8%E5%92%8C%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9A%84%E5%85%B3%E7%B3%BB%E6%98%AF%20%20%20DOT-LOC_main-OR_ser-V_2-P0_1

DTS会在源库定时执CREATE DATABASE IF NOT EXISTS test命令以推进Binlog位点

canal.instance.filter.black.regex=mysql\.slave_.,.\.base table,test\..*

{"data":null,"database":"test","es":1666101967000,"id":273,"isDdl":true,"mysqlType":null,"old":null,"pkNames":null,"sql":"CREATE DATABASE IF NOT EXISTS test","sqlType":null,"table":"","ts":1666101967931,"type":"QUERY"}

过滤不生效

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Expected behaviour

Actual behaviour

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[agapple]

create database默认不做filter，因为不符合 schema.tablename的过滤表达式，可以考虑提交一个PR给我