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https://issues.apache.org/jira/browse/MADLIB-1185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16284304#comment-16284304
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Nikhil commented on MADLIB-1185:
--------------------------------
The exception is coming from this code in PGException_proto.hpp
{code}
class PGException : public std::runtime_error {
public:
explicit
PGException()
: std::runtime_error("The backend raised an exception.") { }
// FIXME: Do something useful with inErrorData
PGException(ErrorData* /* inErrorData */)
: std::runtime_error("The backend raised an exception.") { }
};
{code}
> Postgres 10 support for MADlib with large tables
> ------------------------------------------------
>
> Key: MADLIB-1185
> URL: https://issues.apache.org/jira/browse/MADLIB-1185
> Project: Apache MADlib
> Issue Type: Bug
> Components: DB Abstraction Layer
> Reporter: Nikhil
> Fix For: v1.13
>
>
> Running MADlib on postgres10 with a large dataset ( 98000 rows with a double
> array column) causes the database to crash.
> Repro Steps
> {code}
> 1. create table foo (id integer, x double precision[], y integer);
> 2. Insert 98000 rows like these
> id | x | y
> -------+-------------------------+---
> 97440 | {1,0.2,0,1,0,1,0,0,0,0} | 1
> 3. Now running any C madlib UDF followed by a count(*) of foo will cause the
> database to crash
> select madlib.poisson_random(1); select count(*) from foo;
> or
> select madlib.svec_plus('{1}:{5}', '{1}:{4}'); select count(*) from foo;
> {code}
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