feat(query): add group-by type shrinking rule

[zhang2014]

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Summary

feat(query): add group-by type shrinking rule

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is 

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Missing stats for shrink group key causes aggregate panic

When the rule rewrites a group key to use the new shrink_index (group_items[position].index = rewrite.shrink_index), no column statistics are created for that derived column (EvalScalar’s derive_stats returns the child stats unchanged). Aggregate::derive_agg_stats later indexes column_stats[&group.index] and unwraps, so any aggregate that triggers this shrink will panic during planning because the stats map lacks an entry for the new index. Add stats for the shrink column or avoid replacing the group index in stats-based code paths.

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[github-actions]

Docker Image for PR

• tag: pr-19177-b688014-1766978994

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[github-actions]

Docker Image for PR

• tag: pr-19177-360d488-1767421366

note: this image tag is only available for internal use.

[github-actions]

Docker Image for PR

• tag: pr-19177-a83a2e5-1767421390

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[github-actions]

🤖 CI Job Analysis

Workflow: 20672887061

📊 Summary

• Total Jobs: 83
• Failed Jobs: 29
• Retryable: 0
• Code Issues: 29

❌ NO RETRY NEEDED

All failures appear to be code/test issues requiring manual fixes.

🔍 Job Details

• ❌ linux / sqllogic / standalone_minio_with_bendsave: Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, http, parquet): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, http, native): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, hybrid, parquet): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, hybrid, native): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (crdb, 2c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (crdb, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (base, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (standalone, 2c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (tpcds, 4c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (query, 4c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (base, 2c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (tpcds, 4c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (query, 4c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (standalone, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (tpch, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (query, 4c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (base, 2c, 2, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (query, 4c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpcds, 4c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (crdb, 2c, 2, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpch, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (base, 2c, 2, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpch, 2c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (cluster, 2c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpcds, 4c, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (crdb, 2c, 2, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (cluster, 2c, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (tpch, 2c, http): Not retryable (Code/Test)

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Automated analysis using job annotations to distinguish infrastructure issues (auto-retried) from code/test issues (manual fixes needed).