Re: What kind of sql query can generate multiple children for EXCHANGE node?

Yes, we should. That comment is an ancient remnant of how we used to execute union plans. Today, that comment is simply wrong. On Mon, Feb 5, 2018 at 3:27 PM, Xinran Yu Tinney wrote: > Thanks Alex, should we clarify this in the comment of ExchangNode.java > "Typically,

Re: What kind of sql query can generate multiple children for EXCHANGE node?

unsubscribe On Mon, Feb 5, 2018 at 4:27 PM, Xinran Yu Tinney wrote: > Thanks Alex, should we clarify this in the comment of ExchangNode.java > "Typically, an ExchangeNode only has a single sender child but, > e.g., for distributed union queries an ExchangeNode may have

Re: What kind of sql query can generate multiple children for EXCHANGE node?

Thanks Alex, should we clarify this in the comment of ExchangNode.java "Typically, an ExchangeNode only has a single sender child but, e.g., for distributed union queries an ExchangeNode may have one sender child per union operand." 2018-02-05 11:53 GMT-06:00 Alexander Behm

Re: ERROR: NotImplementedException: MT_DOP not supported

Can you provide the DDL you used when creating the table? Can you provide the query you used to insert? Can you describe what command or query you used to set a specific row's numDVs? On Mon, Feb 5, 2018 at 3:03 PM, Xinran Yu Tinney wrote: > Thanks Tim, sorry that the

Re: ERROR: NotImplementedException: MT_DOP not supported

We don't support insert plans with mt_dop > 0 at the moment. I'd expect it to work for plans that don't involve inserting into a table or any joins. On Mon, Feb 5, 2018 at 3:03 PM, Xinran Yu Tinney wrote: > Thanks Tim, sorry that the attachment does not go through, I was

Re: ERROR: NotImplementedException: MT_DOP not supported

Thanks Tim, sorry that the attachment does not go through, I was not aware that. basically, I was trying to insert some values in a partitioned table and trying to find a way set a specific row's numDVs and the error happened. 2018-02-05 15:24 GMT-06:00 Tim Armstrong : >

What kind of sql query can generate multiple children for EXCHANGE node?

Hi, Impala dev, I am working on Jira IMPALA-5440 and one of the problem is to test that Impala will handle cardinality overflow when there are multiple children under EXCHANGE node. I searched among the examples of .test file and could not