feat(indexing): make LazyArray indexing lazy by default - #4350

Draft

d-v-b wants to merge 38 commits into

zarr-developers:mainfrom

d-v-b:codex/indexing-lazy-default

Commits on Sep 13, 2026

docs(indexing): ground design and integration claims in current behavior
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bf6b01d
docs(indexing): correct reader lazy-array and cache contracts
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eebbe3e
fix(indexing): validate wire boundaries and clarify format contracts
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ba5e080
fix(indexing): validate selector bounds and shared dependencies
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88a2ed4
docs(indexing): reconcile reader contracts and record audit fixes
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7de5975
docs(indexing): reconcile audit with current partition implementation
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560ccd2
docs(indexing): clarify planning coverage and benchmark measurement boundaries
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1f7f020
fix(indexing): group signed chunk coordinates without collisions
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ee1eb21
docs(indexing): state remaining planner limits precisely
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1153244
test(indexing): broaden planner property coverage
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1dbfe0c
fix(indexing): reject unsupported wire index array bounds
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a148daa
fix(indexing): define explicit source token contract
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e2fa854
test(indexing): generate mixed affine planner dependencies
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a74282a
feat(indexing): execute partitions with their reader context
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5c72fa7
docs(indexing): clarify wire bounds rejection contract
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ea0156b
test(indexing): broaden planner property coverage
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1d353c3
test(indexing): generate mixed affine planner dependencies
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341d7f0
fix(indexing): reject unsupported wire index array bounds
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f6a13f2
docs(indexing): clarify wire bounds rejection contract
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e7ad922
fix(indexing): define explicit source token contract
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642b6a3
feat(indexing): execute partitions with their reader context
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e302929
fix(indexing): reject mmap-backed token buffers
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205c027
fix(indexing): reject mmap-backed token buffers
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399197c
docs(indexing): number audit changelog entries for PR 4345
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37bdcd8
docs(indexing): number changelog entries for PR 4346
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692322c
docs(indexing): number changelog entries for PR 4347
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dc3cfd6
docs(indexing): number changelog entries for PR 4348
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105937f
docs(indexing): number changelog entries for PR 4349
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6ec3199
feat(indexing): make LazyArray indexing lazy by default
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5632715
chore(indexing): synchronize prerequisite PR changelogs
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9a34ea7
docs(indexing): number changelog entry for PR 4350
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c1442b4
docs(indexing): describe current contracts in docstrings
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1e385a8
docs(indexing): inherit current-contract docstrings from audit
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9ffd109
docs(indexing): inherit current-contract docstrings from audit
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584c38f
docs(indexing): inherit current-contract docstrings from audit
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d845b9f
docs(indexing): inherit current-contract docstrings from audit
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4d0283d
docs(indexing): inherit current-contract docstrings from audit
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00d71b1
chore(indexing): synchronize updated prerequisite heads
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a6f9949