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Casting a timestamp from a string results in NULL #4019

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

Casting a timestamp from a string results in NULL #4019

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


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@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2016-06-08 20:48:19 +0200
From: @skinkie
To: SQL devs <>
Version: 11.21.19 (Jul2015-SP4)
CC: @njnes

Last updated: 2016-10-13 10:04:11 +0200

Comment 22198

Date: 2016-06-08 20:48:19 +0200
From: @skinkie

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/49.0.2623.108 Chrome/49.0.2623.108 Safari/537.36
Build Identifier:

I would like to use MonetDB to parse an ISO timestamp. This operation works with copy into for certain timestamps but doesn't work in the SQL layer.

Reproducible: Always

Steps to Reproduce:

  1. select cast('2015-12-08T00:46:60' as timestamp);
  2. select cast('2015-12-08 00:46:60' as timestamp);

Actual Results:

| L1 |
| null |

MonetDB 5 server v11.24.0 (64-bit, 64-bit oids, 128-bit integers)
This is an unreleased version
Copyright (c) 1993-July 2008 CWI
Copyright (c) August 2008-2016 MonetDB B.V., all rights reserved
Visit for further information
Found 62.8GiB available memory, 8 available cpu cores
libpcre: 8.38 2015-11-23 (compiled with 8.38)
openssl: OpenSSL 1.0.2h 3 May 2016 (compiled with OpenSSL 1.0.2h 3 May 2016)
libxml2: 2.9.4 (compiled with 2.9.4)
Compiled by: skinkie@chamechaude (x86_64-pc-linux-gnu)
Compilation: gcc -O3 -pipe -Werror -Wall -Wextra -W -Werror-implicit-function-declaration -Wpointer-arith -Wdeclaration-after-statement -Wundef -Wformat=2 -Wno-format-nonliteral -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-format-attribute -Wmissing-prototypes -Wold-style-definition -Wpacked -Wunknown-pragmas -Wvariadic-macros -fstack-protector-all -Wstack-protector -Wpacked-bitfield-compat -Wsync-nand -Wjump-misses-init -Wmissing-include-dirs -Wlogical-op -Wunreachable-code
Linking : /usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64

Comment 22309

Date: 2016-08-19 16:33:16 +0200
From: MonetDB Mercurial Repository <>

Changeset 93eaf7528d23 made by Niels Nes in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=93eaf7528d23

Changeset description:

added test for bug #4019.
fixed bug: added check for nil by timestamp fromstr

Comment 24493

Date: 2016-10-13 10:04:11 +0200
From: @sjoerdmullender

Jun2016-SP2 has been released.

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