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Assertion hit in the codegen #2 #6123

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monetdb-team opened this issue Nov 30, 2020 · 0 comments
Closed

Assertion hit in the codegen #2 #6123

monetdb-team opened this issue Nov 30, 2020 · 0 comments
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bug Something isn't working major SQL

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@monetdb-team
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Date: 2016-11-16 17:53:00 +0100
From: Dean De Leo <>
To: SQL devs <>
Version: -- development
CC: @njnes

Last updated: 2016-12-21 13:08:23 +0100

Comment 24690

Date: 2016-11-16 17:53:00 +0100
From: Dean De Leo <>

User-Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.90 Safari/537.36
Build Identifier:

I'm hitting the assertion reported again in bug #6115 with a more complex query this time.

On Linux, tip of the default branch, debug build, empty tables.

Reproducible: Always

Steps to Reproduce:

  1. Load the attached schema.
  2. Issue the query.
  3. Assertion hit!

Actual Results:

An assertion fails and the server crashes.

Comment 24691

Date: 2016-11-16 17:53:54 +0100
From: Dean De Leo <>

Created attachment 506
schema.sql

Attached file: schema.sql (application/sql, 7731 bytes)
Description: schema.sql

Comment 24692

Date: 2016-11-16 17:54:31 +0100
From: Dean De Leo <>

Created attachment 507
query6.sql

Attached file: Q6.txt (text/plain, 1274 bytes)
Description: query6.sql

Comment 24693

Date: 2016-11-16 17:55:08 +0100
From: Dean De Leo <>

Created attachment 508
debugger backtrace

Attached file: backtrace6.txt (text/plain, 6372 bytes)
Description: debugger backtrace

Comment 24757

Date: 2016-12-04 14:16:03 +0100
From: MonetDB Mercurial Repository <>

Changeset 7158d059e8ac made by Niels Nes niels@cwi.nl in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=7158d059e8ac

Changeset description:

fixed bug #6123, ie handle correlated in subqueries in selection better

Comment 24758

Date: 2016-12-04 14:16:39 +0100
From: @njnes

fixed by improved correlated in handling

@monetdb-team monetdb-team added bug Something isn't working major SQL labels Nov 30, 2020
@sjoerdmullender sjoerdmullender added this to the Ancient Release milestone Feb 7, 2022
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