pick refactor BE directory structure to 4.1#61595

Merged

yiguolei merged 26 commits intoapache:branch-4.1from

yiguolei:branch-4.1

Mar 23, 2026

Commits on Mar 21, 2026

[fix](decimalv2) fix wrong result of abs(decimalv2) (#61397) (#61408)

jacktengg
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yiguolei
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[be](refactor)refactor doris BE code structure (#61107)
yiguolei
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fix rebase bug
yiguolei
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[be](chore)fix ubsan error (#61127)
yiguolei
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[be](ubsan) fix rowcusor ubsan error (#61153)
yiguolei
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[fix](wal) rename wal_reader and move to wal directory (#61135)

mymeiyi
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yiguolei
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[be](namespace) remove vecotorized and pipeline namespace (#61142)
yiguolei
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yiguolei
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[fix](test) fix death tests crash in multi-threaded UT binary (#61158)

csun5285
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yiguolei
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[fix](test) fix JsonBinaryValueTest and AcceptNullPredicateTest failures (#61189)

csun5285
authored and
yiguolei
committed
[fix](test) Fix ODR violation for MockFileReader across test files. (#61170)

kaka11chen
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yiguolei
committed
[be](refactor) move rowtype template parameter from key util (#61226)
yiguolei
committed

Commits on Mar 23, 2026