The non-streaming hint of insert into will use the streamin plan which is same as the plan of stream insert.
It will also record the load info and return the label of insert stmt.
The partition is supportted in insert into stmt. The result which meet the target partitions will be loaded.
The introduction of example has been changed especially non-streaming insert.
Also, the param of partition_names is added in sql syntax which is used to declare the target partition_names in target table.
Change META_VERSION to 50
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