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warn or optimize usage of <code>ifelse()</code>

enhancement

Status: Closed (completed).

#2677 In Rdatatable/data.table;

· by mattdowle was closed on Dec 9, 2024

Melt on multiple columns: undocumented behavior

reshapedcast meltdcast melt

Status: Closed (completed).

#4047 In Rdatatable/data.table;

· by otoomet was closed on Nov 29, 2024

Confusing behavior with DT[, min(var):max(var)]

bug

Status: Closed (completed).

#2069 In Rdatatable/data.table;

· by franknarf1 was closed on Sep 7, 2024

join vignette

documentation

joinsUse label:"non-equi joins" for rolling, overlapping, and non-equi joinsUse label:"non-equi joins" for rolling, overlapping, and non-equi joins

non-equi joinsrolling, overlapping, non-equi joinsrolling, overlapping, non-equi joins

top requestOne of our most-requested issuesOne of our most-requested issues

Status: Closed (completed).

#2181 In Rdatatable/data.table;

· by lilchow was closed on Nov 15, 2024

Improve error message for <code>:=</code>(a := b, c := d)

Status: Closed (completed).

#5296 In Rdatatable/data.table;

· by MichaelChirico was closed on Sep 9, 2024

order optimization does not recognize all order args properly

bug

Status: Closed (completed).

#4456 In Rdatatable/data.table;

· by jangorecki was closed on Jan 6, 2025

sum operation of a numeric column by group in a large data set produces incorrect results.

bug

GForceissues relating to optimized grouping calculations (GForce)issues relating to optimized grouping calculations (GForce)

not reproducible

Status: Closed (completed).

#5066 In Rdatatable/data.table;

· by letitbk was closed on Dec 10, 2024

Low performance of setkey function for version 1.12.0 and later

High

performance

regression

Status: Closed (completed).

#4788 In Rdatatable/data.table;

· by oliviermeslin was closed on Jan 25, 2025

Merging by character columns is very slow

High

joinsUse label:"non-equi joins" for rolling, overlapping, and non-equi joinsUse label:"non-equi joins" for rolling, overlapping, and non-equi joins

performance

regression

Status: Closed (completed).

#4733 In Rdatatable/data.table;

· by matthiasgomolka was closed on Jan 25, 2025

<code>rbind</code> cannot handle different name encodings

[rbind|cbind|merge]list

encodingissues related to Encodingissues related to Encoding

Status: Closed (completed).

#5452 In Rdatatable/data.table;

· by MEO265 was closed on Dec 3, 2024

rbindlist internal error when binding integer64 + character columns

[rbind|cbind|merge]list

bit64

bug

Status: Closed (completed).

#5504 In Rdatatable/data.table;

· by MichaelChirico was closed on Sep 8, 2024

column type 'expression' not supported by data.table subset

Status: Closed (completed).

#5596 In Rdatatable/data.table;

· by tsp was closed on Sep 8, 2024

Using a function inside <code>by</code> causes troubles

bug

Status: Closed (completed).

#5583 In Rdatatable/data.table;

· by AbrJA was closed on Jan 17, 2025

as.data.table should remove extra attributes from extended data.frames

consistency

Status: Closed (completed).

#5699 In Rdatatable/data.table;

· by jangorecki was closed on Jan 17, 2025

Release data.table 1.17.0

releaseIssues related specifically to releasesIssues related specifically to releases

Status: Closed (completed).

#6616 In Rdatatable/data.table;

· by MichaelChirico was closed on Feb 22, 2025

New compiler warnings about modifying 'const' object (STRING_PTR_RO)

internals

Status: Closed (completed).

#6656 In Rdatatable/data.table;

· by MichaelChirico was closed on Dec 13, 2024

revdep dbi.table broken by with=FALSE

revdepReverse dependenciesReverse dependencies

Status: Closed (completed).

#6671 In Rdatatable/data.table;

· by tdhock was closed on Jan 10, 2025

revdeps hilldiv, wxgenR broken when melt redirect removed

reshapedcast meltdcast melt

revdepReverse dependenciesReverse dependencies

WAIWorking as intendedWorking as intended

Status: Closed (completed).

#6670 In Rdatatable/data.table;

· by tdhock was closed on Feb 27, 2025

revdeps broken by DT[, j=&lt;expr&gt;:&lt;expr] being with=TRUE

revdepReverse dependenciesReverse dependencies

Status: Closed (completed).

#6486 In Rdatatable/data.table;

· by MichaelChirico was closed on Sep 11, 2024

revdep DramaAnalysis failure after as.data.frame redirect

revdepReverse dependenciesReverse dependencies

Status: Closed (completed).

#6739 In Rdatatable/data.table;

· by tdhock was closed on Jan 23, 2025

revdep tidytable test failure after new NULL replacement

revdepReverse dependenciesReverse dependencies

Status: Closed (completed).

#6740 In Rdatatable/data.table;

· by tdhock was closed on Jan 30, 2025

setDT() on a get()-returned object no longer works as intended

regression

Status: Closed (completed).

#6725 In Rdatatable/data.table;

· by MichaelChirico was closed on Jan 17, 2025

setDT() fails in case of nested calls

Status: Closed (completed).

#6735 In Rdatatable/data.table;

· by MichaelChirico was closed on Jan 27, 2025

Memory leak in <code>fwrite</code>

Status: Closed (completed).

#6733 In Rdatatable/data.table;

· by aitap was closed on Jan 24, 2025

is.na behavior change/regression on Windows + r-devel

duplicate

R-devel

Status: Closed (completed).

#6771 In Rdatatable/data.table;

· by MichaelChirico was closed on Jan 30, 2025