Correction "A pure UPSERT doesn't handle a WHERE clause."
On Thursday, May 22, 2014 8:37:56 PM UTC-4, Dmitry Goldenberg wrote:Hi Alex,Yes, I've thought of that.Examples:UPSERT INTO test.targetTable(col1, col2) SELECT col3, col4 FROM test.sourceTable WHERE col5 < 100
UPSERT INTO foo SELECT * FROM bar;This doesn't seem to have a way of providing a VALUES clause which is exactly what I need. I want to be able to select items in the queue where status=4, but reset the value to 1 and persist it.A pure UPSERT doesn't handle a VALUES clause either:UPSERT INTO TEST VALUES('foo','bar',3);
UPSERT INTO TEST(NAME,ID) VALUES('foo',123);Ideally one would want a combo of these two. Perhaps a direct implementation of a SQL update?- DmitryOn Thu, May 22, 2014 at 8:19 PM, alex kamil <email@example.com> wrote:
Dmitry, how about upsert select?thanksAlexOn Thu, May 22, 2014 at 6:13 PM, Dmitry Goldenberg <firstname.lastname@example.org> wrote:--Hi all,I'm trying to implement the type of logic with Phoenix which can be summarized as the below SQL statement:UPDATE queue SET status = 1 WHERE status = 4 AND environment='QA'I've noticed that UPSERT's don't support WHERE clauses. It seems to me then that I have to first create a view which would allow me to work with all the rows WHERE status=4 AND environment='QA'.So then, create view myview1 as select * from queue where status=4 and environment='QA'; I can tell that selection of rows works for this view. Next then, is to implement the UPDATE logic:UPSERT INTO myview (status) VALUES (1);which produces the error: org.apache.phoenix.schema.ConstraintViolationException: MYVIEW.ENTRYID may not be null. Of note, my 'queue' table has a primary key called ENTRYID which I populate via a sequence.Any ideas as to how I could get around this constraint violation? Or perhaps another way of implementing conditional updates (with a WHERE) of existing rows via Phoenix?I have looked at the IMMUTABLE_ROWS property as well. I wasn't clear on whether this is available on both tables and views and whether it defaults to mutable or immutable. I have tried setting this on the view, which wasn't allowed (ERROR 1012 (42M03): Table undefined). I've also tried setting IMMUTABLE_ROWS=false on the 'queue' table itself and that didn't make a difference.Any suggestions would be appreciated.
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