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Add Support for New BITOP Operations in Redis 8.2 (#4188) #4190

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Add Support for New BITOP Operations in Redis 8.2 (#4188) #4190

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@ggivo ggivo commented Jun 27, 2025

This PR adds support for the new BITOP operations introduced in Redis Community Edition 8.2:
DIFF, DIFF1, ANDOR, and ONE.

Changes

  • Added new enum values to BitOP.java for the new operations: DIFF, DIFF1, ANDOR, and ONE
  • Updated tests in BitCommandsTest.java and BitCommandsTestBase.java to verify the new operations

New Operations

  • DIFF(X, Y1, Y2, ...):
    • Members of X that are not members of any of Y1, Y2, ...
    • Equivalent to: X ∧ ¬(Y1 ∨ Y2 ∨ ...)
  • DIFF1(X, Y1, Y2, ...):
    • Members of one or more of Y1, Y2, ...
    • that are not members of X Equivalent to: ¬X ∧ (Y1 ∨ Y2 ∨ ...)
  • ANDOR(X, Y1, Y2, ...):
    • Members of X that are also members of one or more of Y1, Y2, ...
    • Equivalent to: X ∧ (Y1 ∨ Y2 ∨ ...)
  • ONE(X1, X2, ...):
    • Members of exactly one of X1, X2, ...
    • For two bitmaps, this is equivalent to XOR(X1, X2)
    • For more than two bitmaps, this represents elements that appear in exactly one input

Closes #4188

@ggivo
Add Support for New BITOP Operations in Redis 8.2 (redis#4188)
7bb76d2 
This PR adds support for the new BITOP operations introduced in Redis Community Edition 8.2: DIFF, DIFF1, ANDOR, and ONE.

Changes
  - Added new enum values to BitOP.java for the new operations: DIFF, DIFF1, ANDOR, and ONE
  - Updated tests in BitCommandsTest.java and BitCommandsTestBase.java to verify the new operations

New Operations
  - DIFF(X, Y1, Y2, ...): Members of X that are not members of any of Y1, Y2, ...
    Equivalent to: X ∧ ¬(Y1 ∨ Y2 ∨ ...)
  - DIFF1(X, Y1, Y2, ...): Members of one or more of Y1, Y2, ... that are not members of X
    Equivalent to: ¬X ∧ (Y1 ∨ Y2 ∨ ...)
  - ANDOR(X, Y1, Y2, ...): Members of X that are also members of one or more of Y1, Y2, ...
    Equivalent to: X ∧ (Y1 ∨ Y2 ∨ ...)
  - ONE(X1, X2, ...): Members of exactly one of X1, X2, ...
    For two bitmaps, this is equivalent to XOR(X1, X2)
    For more than two bitmaps, this represents elements that appear in exactly one input

Closes redis#4188
@ggivo ggivo requested review from uglide and atakavci July 1, 2025 11:09
uglide
uglide reviewed Jul 3, 2025
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Some minor nitpicks in the testcase, otherwise looks good

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@uglide uglide uglide left review comments

@atakavci atakavci Awaiting requested review from atakavci

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Add support for new operations of BITOP command in Redis Community Edition 8.2
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@ggivo @uglide