MCOL-4889 Vacuum cleaning for on-disk data empty records #3237
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Ziy1-Tan
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MCOL-4889 introduces new tools for managing AUX columns (introduced in #2046) to reduce disk usage.
Main Changes
1. Display Empty Value Rate
mcs_analyze_partition_bloat(['schema',] 'table', 'partition'): Analyze empty value rate at the partition level.mcs_analyze_table_bloat(['schema',] 'table'): Analyze empty value rate at the table level.2. Manual Cleanup
mcs_vacuum_partition_bloat(['schema',] 'table', 'partition'): Manually clean up empty values at the partition level.mcs_vacuum_table_bloat(['schema',] 'table'): Manually clean up empty values at the table level.3. Automatic Cleanup