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quantile(col, 0) and quantile(col, 1) fail #3773

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monetdb-team opened this issue Nov 30, 2020 · 0 comments
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quantile(col, 0) and quantile(col, 1) fail #3773

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

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Date: 2015-07-21 10:12:41 +0200
From: @sjoerdmullender
To: SQL devs <>
Version: 11.19.15 (Oct2014-SP4)
CC: @njnes

Last updated: 2015-08-28 13:42:13 +0200

Comment 21030

Date: 2015-07-21 10:12:41 +0200
From: @sjoerdmullender

compare the two plan:

create table x (y decimal(10,4));
plan quantile(y, 0.0) from x;
plan quantile(y, 0) from x;

The first works, the second doesn't. However both are questionable.
The first casts column y to double (why?), the second casts it to tinyint(!).

I think there should be no cast at all of column y, since quantiles are defined on all integer types (there may have to be some higher level magic to deal with decimals).

Comment 21037

Date: 2015-07-22 10:08:30 +0200
From: @njnes

improved aggregation function resolution.

Comment 21038

Date: 2015-07-22 10:20:37 +0200
From: MonetDB Mercurial Repository <>

Changeset b26c48634f0d 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=b26c48634f0d

Changeset description:

added tests for bugs 3775 and 3773

Comment 21040

Date: 2015-07-22 10:23:29 +0200
From: MonetDB Mercurial Repository <>

Changeset 7bd0dd798226 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=7bd0dd798226

Changeset description:

when we cannot resolve a aggregation function on all types, fallback to
searching based on name, number of arguments and first argument type.
Solve bug #3773

Comment 21206

Date: 2015-08-28 13:42:13 +0200
From: @sjoerdmullender

Jul2015 has been released.

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