asfgit closed pull request #7379: [FLINK-11119][docs] Correct Scala example for
Table Function in User-…
URL: https://github.com/apache/flink/pull/7379
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/docs/dev/table/udfs.md b/docs/dev/table/udfs.md
index 44b8d431c8d..d93b5c8c3f7 100644
--- a/docs/dev/table/udfs.md
+++ b/docs/dev/table/udfs.md
@@ -190,7 +190,7 @@ tableEnv.sqlQuery("SELECT a, word, length FROM MyTable LEFT
JOIN LATERAL TABLE(s
class Split(separator: String) extends TableFunction[(String, Int)] {
def eval(str: String): Unit = {
// use collect(...) to emit a row.
- str.split(separator).foreach(x -> collect((x, x.length))
+ str.split(separator).foreach(x => collect((x, x.length)))
}
}
@@ -210,7 +210,7 @@ tableEnv.registerFunction("split", new Split("#"))
// CROSS JOIN a table function (equivalent to "join" in Table API)
tableEnv.sqlQuery("SELECT a, word, length FROM MyTable, LATERAL
TABLE(split(a)) as T(word, length)")
// LEFT JOIN a table function (equivalent to "leftOuterJoin" in Table API)
-tableEnv.sqlQuery("SELECT a, word, length FROM MyTable LEFT JOIN
TABLE(split(a)) as T(word, length) ON TRUE")
+tableEnv.sqlQuery("SELECT a, word, length FROM MyTable LEFT JOIN LATERAL
TABLE(split(a)) as T(word, length) ON TRUE")
{% endhighlight %}
**IMPORTANT:** Do not implement TableFunction as a Scala object. Scala object
is a singleton and will cause concurrency issues.
</div>
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
