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### What changes were proposed in this pull request? pre-compute the output indices of numerical columns, instead of computing them on each row. ### Why are the changes needed? for a numerical column, its output index is a hash of its `col_name`, we can pre-compute it at first, instead of computing it on each row. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? existing testsuites Closes #29850 from zhengruifeng/hash_opt. Authored-by: zhengruifeng <ruifengz@foxmail.com> Signed-off-by: zhengruifeng <ruifengz@foxmail.com> |
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