GitHub user lincoln-lil opened a pull request:
https://github.com/apache/flink/pull/3829
[FLINK-6442] [table] Extend TableAPI Support Sink Table Registration â¦
Support Sink Table Registration and âinsert intoâ Clause in SQL:
1. support registering a sink table (like source table registration, and
will do validation according to the registered table)
2. support âinsert intoâ clause in SQL
3. do not support insert partial columns of the target table due to table
columns havenât nullable property definition for now
Tried to implement translating the whole SQL string via converter rules,
while in Flink, sink operation has no output but all RelNodes' translation
should return a DataSet/DataStream, and Calcite's TableModify defines output
for DML(INSERT,DELETE,UPDATE) is a RowCount column of BigInt type.
So separate source translation if DML insert, this a workaround since we
have no conclusion for the output type definition of sink operation(compare to
traditional SQL insert).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/lincoln-lil/flink FLINK-6442
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3829.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3829
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commit 4aec1f6d6167ab7f0be9ace3d9f51a877d21ef46
Author: lincoln-lil <[email protected]>
Date: 2017-05-04T09:52:34Z
[FLINK-6442] [table] Extend TableAPI Support Sink Table Registration and
âinsert intoâ Clause in SQL
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