[Registry] Switch `{:duplicate, :key}` key_ets to ordered_set with composite keys#15304

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studzien wants to merge 23 commits intoelixir-lang:mainfrom

studzien:registry/duplicate-ordered-set-redo

Commits on Apr 23, 2026

Switch {:duplicate, :key} key_ets to ordered_set

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claude
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Build composite key entry for {:duplicate, :key} registration
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Use ordered_lookup_second for {:duplicate, :key} lookups

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Use ordered_unregister_key for {:duplicate, :key} unregistration

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Update match/4 and count_match/4 for ordered_set key_ets

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Update select/2 and count_select/2 for ordered_set key_ets

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Update unregister_match/4 for ordered_set key_ets

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Fix match spec body tuple wrapping and parallel dispatch

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Remove unnecessary parallel dispatch for {:duplicate, :key}

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Reduce duplication in match/4 and count_match/4

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Unify __unregister__ to handle both bag and ordered key_ets

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Collapse unregister_match into single function with spec builder

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Add comment explaining ordered_rewrite for select specs

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Remove ordered_rewrite from select/count_select

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Document {:duplicate, :key} ETS layout difference in start_link docs

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Restore comment explaining total_spec vs delete_spec

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Unify safe_lookup_second and ordered_lookup_second into lookup_second/3

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Unify match spec helpers into match_spec/4 and count_match_spec/4

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Fix formatting in unregister_match_specs

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Add layout comment and tricky-key tests for match/count_match
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Add tricky-key tests for select/count_select
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Cover "$1" reserved-atom key in duplicate registry tests
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Group reserved-atom key tests together in duplicate registry tests
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[Registry] Switch `{:duplicate, :key}` key_ets to ordered_set with composite keys#15304

[Registry] Switch `{:duplicate, :key}` key_ets to ordered_set with composite keys#15304
studzien wants to merge 23 commits intoelixir-lang:mainfrom
studzien:registry/duplicate-ordered-set-redo

Commits on Apr 23, 2026

Switch {:duplicate, :key} key_ets to ordered_set

Build composite key entry for {:duplicate, :key} registration

Use ordered_lookup_second for {:duplicate, :key} lookups

Use ordered_unregister_key for {:duplicate, :key} unregistration

Update match/4 and count_match/4 for ordered_set key_ets

Update select/2 and count_select/2 for ordered_set key_ets

Update unregister_match/4 for ordered_set key_ets

Fix match spec body tuple wrapping and parallel dispatch

Remove unnecessary parallel dispatch for {:duplicate, :key}

Reduce duplication in match/4 and count_match/4

Unify unregister to handle both bag and ordered key_ets

Collapse unregister_match into single function with spec builder

Add comment explaining ordered_rewrite for select specs

Remove ordered_rewrite from select/count_select

Document {:duplicate, :key} ETS layout difference in start_link docs

Restore comment explaining total_spec vs delete_spec

Unify safe_lookup_second and ordered_lookup_second into lookup_second/3

Unify match spec helpers into match_spec/4 and count_match_spec/4

Fix formatting in unregister_match_specs

Add layout comment and tricky-key tests for match/count_match

Add tricky-key tests for select/count_select

Cover "$1" reserved-atom key in duplicate registry tests

Group reserved-atom key tests together in duplicate registry tests