raminqaf commented on code in PR #29310:
URL: https://github.com/apache/flink/pull/29310#discussion_r4123976029
##########
docs/content.zh/docs/sql/reference/data-types.md:
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@@ -1593,6 +1593,12 @@ object as `{k1=v1, k2=v2}`, with each value rendered by
these same rules and a n
shown as `NULL`. A string is never quoted, at any depth. Use `JSON_STRING` for
the JSON form with
quoted strings. A variant that stores a JSON `null` casts to SQL `NULL`.
+Printed results, for example in the SQL client, render a `VARIANT` the same
way as
+`CAST(v AS STRING)`, not as JSON, but printing never fails. A binary value
prints as `x'68656c6c6f'`, a JSON `null` as `NULL`
+where a SQL `NULL` prints as `<NULL>`, a type written by a newer version as
`<UNKNOWN>`, and other
+data that cannot be decoded as `<INVALID>`. A `TIMESTAMP_LTZ` prints in the
session time zone, as in
+the cast.
Review Comment:
Addressed
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