发件人: user-return-679-chengboqun=ict.ac...@phoenix.incubator.apache.org
[mailto:user-return-679-chengboqun=ict.ac...@phoenix.incubator.apache.org] 代表
Jody Landreneau
发送时间: 2014年5月20日 2:01
收件人: [email protected]
主题: Re: null array
Thank you James!
We appreciate your work on this. I've created
https://issues.apache.org/jira/browse/PHOENIX-989 to track the issue.
On Fri, May 16, 2014 at 11:17 PM, James Taylor <[email protected]> wrote:
Hi Jody,
Those are definitely bugs - you should be able to set a column of type ARRAY to
null. Please file a JIRA and we'll get this fixed up. Sorry for the
inconvenience.
Thanks,
James
On Fri, May 16, 2014 at 9:16 PM, Jody Landreneau <[email protected]>
wrote:
Hello all,
I am using phoenix arrays. My question is in regards as to how you would set
null for an empty array or for the array field type. I can't seem to get that
to work. If I have a string[] I can set an array with a single empty string,
but it seems like I should be able to set the param to null. I don't know what
I would do for another type of array like bigint.
Example:
CREATE TABLE regions (
region_name VARCHAR NOT NULL,
nullable_field VARCHAR,
zips VARCHAR[]
CONSTRAINT pk PRIMARY KEY (region_name));
I can
UPSERT INTO regions(region_name, nullable_field)
VALUES('SF Bay Area', null)
but not
UPSERT INTO regions(region_name, nullable_field, zips)
VALUES('SF Bay Area', 'one', null)
I can also
UPSERT INTO regions(region_name, nullable_field, zips)
VALUES('SF Bay Area', null, ARRAY[''])
and this seems to return null for the array but not sure how to use this
approach for other types.
I have the same issue attempting to use jdbc, when I call the
PreparedStatement's
<http://docs.oracle.com/javase/7/docs/api/java/sql/PreparedStatement.html#setNull(int,%20int)>
setNull(int parameterIndex, int sqlType) and I set the sqlType to ARRAY.
Seems that the error I get is
java.lang.NullPointerException
at org.apache.phoenix.schema.PDataType$27.isCoercibleTo(PDataType.java:3455)
at org.apache.phoenix.compile.UpsertCompiler$3.execute(UpsertCompiler.java:695)
at
org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:226)
at org.apache.phoenix.jdbc.PhoenixStatement.execute(PhoenixStatement.java:185)
at
org.apache.phoenix.jdbc.PhoenixPreparedStatement.execute(PhoenixPreparedStatement.java:146)
at
org.apache.phoenix.jdbc.PhoenixPreparedStatement.execute(PhoenixPreparedStatement.java:151)
Any thoughts on what I should be seeing or doing?
Thanks in advance --
