[GitHub] [flink] wuchong commented on a change in pull request #14464: [FLINK-20385][canal][json] Allow to read metadata for canal-json format

[GitBox]

wuchong commented on a change in pull request #14464:
URL: https://github.com/apache/flink/pull/14464#discussion_r549316097



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File path: docs/dev/table/connectors/formats/canal.zh.md
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@@ -198,11 +198,14 @@ The following example shows how to access Canal metadata 
fields in Kafka:
 <div data-lang="SQL" markdown="1">
 {% highlight sql %}
 CREATE TABLE KafkaTable (
-  `origin_database` STRING METADATA FROM 'value.database' VIRTUAL,
-  `origin_table` STRING METADATA FROM 'value.table' VIRTUAL,
-  `user_id` BIGINT,
-  `item_id` BIGINT,
-  `behavior` STRING
+  origin_database STRING METADATA FROM 'value.database' VIRTUAL,
+  origin_table STRING METADATA FROM 'value.table' VIRTUAL,
+  origin_sql_type MAP&lt;STRING, INT&gt; METADATA FROM 'value.sql-type' 
VIRTUAL,

Review comment:
       Don't need to escape the character. 




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