Mulan created FLINK-19962:
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Summary: fix doc: more examples for expanding arrays into a
relation
Key: FLINK-19962
URL: https://issues.apache.org/jira/browse/FLINK-19962
Project: Flink
Issue Type: Improvement
Components: Documentation
Reporter: Mulan
https://ci.apache.org/projects/flink/flink-docs-master/dev/table/sql/queries.html
The ' Expanding arrays into a relation ' section is so simple. I can not
understand the usage when I see this section.
It should be added more examples.
The following examples
{quote}SELECT a, b, v FROM T CROSS JOIN UNNEST(c) as f (k, v){quote}
{quote}SELECT a, s FROM t2 LEFT JOIN UNNEST(t2.`set`) AS A(s){quote}
{quote}SELECT a, km v FROM t2 CROSS JOIN UNNEST(t2.c) AS A(k, v){quote}
or add some Table field description. For example, field 'set' type of table t2
is array or map.
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