introduce optional rle reads from parquet - #24227

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Rich-T-kid:rich-T-kid/introduce-rle-parquet-flag

Commits on Sep 15, 2026

enable rle_to_dictionary flag
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f2d760f
remove rle_column_allowlist API, fix unconditional dict rewrite regression in schema coercion
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bed0b34
enable flag
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8165d54
flip back to false
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a6c45c7
address key growth
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bc1b55d
add unit test to catch widening dictionary case, Add docs detailing new parquet option
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6419699
address review: fix UInt64+Int64 key narrowing, exercise Int8 overflow in SLT
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93e944b
fix: add missing closing brace for assert_field_metadata_preserved
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9ef5af7
resolve git conflicts
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cb3a578