Incomprehensible error message

Question

Hi all,
my stored procedure which was working ok for some weeks now and which I haven't changed started to produce the following error message:
* 2048: column store error:  [2048] "I2S"."VEGA_UPDATE": line 156 col 2 (at pos 10961): [2048] (range 3): column store error: search table error:  [6900] Error executing physical plan: exception 6900:
AttributeEngine/Parallel/Evaluator.cpp:94
Attribute engine failed; $function$=createEvaluator; $message$=input $$place_holder_3$$ unknown; $message$=input $$place_holder_3$$ unknown
,in executor::Executor in cube: I2S:0x7f4587173e00:1 SQLSTATE: HY000
Is there anyone out there who can explain to me what Hana wants to tell me? When I execute the statement at that line outside of the stored procedure, it runs without problems:
UPDATE a SET b = (
            SELECT count(*) FROM ct, cats c1, cats c2, t WHERE ct.company = c1.category AND c1.time BETWEEN 1393496805 AND 1393583205 AND c1.document_id = c2.document_id AND c2.category = t.category AND c1.relevance >= 80 AND c2.relevance >= 70 AND a.category = ct.company);
The error appeared after switching to SPS7 on AWS.
Cheers,
-- Micha

Answer 1

Well the procedure is quite large and I don't actually want to make all our code public, it is from our current product. Meanwhile I've been experimenting with commenting parts of the procedure out and so I've identified the culprit statement. Mind you, when executed outside of the procedure, it runs fine. The "bad" statement was
UPDATE vc SET a = tmp.perc FROM (
SELECT tmp1.uu, CASE WHEN tt < :mfr THEN 0 ELSE ROUND(tt/aa*100, 0) END perc FROM (SELECT c2.uu, COUNT(*) tt FROM c c1, c c2, threat t WHERE c1.uu = t.uu AND c1.time BETWEEN :day_before AND :now AND c1.id = c2.id AND c1.ubc >= :tur AND c2.ubc >= :cur GROUP BY c2.uu) tmp1, (SELECT c1.uu, COUNT(*) aa FROM cats c1 WHERE c1.time BETWEEN :day_before AND :now AND c1.ubc >= :cur GROUP BY c1.uu) tmp2 WHERE tmp1.uu = tmp2.uu) tmp WHERE vc.uu = tmp.uu;
Curiously, a cosmetic change makes the procedure to execute correctly:
UPDATE vc SET a = (SELECT tmp.perc FROM (
SELECT tmp1.uu, CASE WHEN tt < :mfr THEN 0 ELSE ROUND(tt/aa*100, 0) END perc FROM (SELECT c2.uu, COUNT(*) tt FROM c c1, c c2, threat t WHERE c1.uu = t.uu AND c1.time BETWEEN :day_before AND :now AND c1.id = c2.id AND c1.ubc >= :tur AND c2.ubc >= :cur GROUP BY c2.uu) tmp1, (SELECT c1.uu, COUNT(*) aa FROM cats c1 WHERE c1.time BETWEEN :day_before AND :now AND c1.ubc >= :cur GROUP BY c1.uu) tmp2 WHERE tmp1.uu = tmp2.uu) tmp WHERE vc.uu = tmp.uu);
Since this has worked without problems on SP6 and the problem appeared right after upgrading to SP7, I'd suspect some malign Hana code change...In any case, it would be a lot more user-friendly if the error message were readable by humans :-)
-- Micha