Extract _prepare_unload() helper into BaseCursor#678
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laughingman7743 merged 2 commits intomasterfrom Feb 21, 2026
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The UNLOAD preparation block (validate s3_staging_dir, wrap query with UNLOAD statement) was duplicated character-for-character across 9 cursor files. This consolidates the logic into a single _prepare_unload() method on BaseCursor, which is pure computation and works for all cursor families (sync, async, aio). Also adds return type annotation to Formatter.wrap_unload() to satisfy mypy. Closes #670 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
s3_staging_dir, wrap query viaFormatter.wrap_unload()) into a single_prepare_unload()method onBaseCursorFormatter.wrap_unload()to satisfy mypyNet change: +48 / -119 lines (71 lines removed).
Closes #670
Test plan
make fmtpassesmake chkpasses (ruff lint + format + mypy)make testpasses (requires AWS credentials)🤖 Generated with Claude Code