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doris/be/test
yiguolei a2ed4b5c78 [improvement] improvement for light weight schema change (#10860)
* improvement for dynamic schema
not use schema as lru cache key any more.
load segment just use the rowset's original schema not the current read schema.
generate column reader and column iterator using the original schema, using the read schema if it is a new column.
using column unique id as key instead of column ordinals.
Co-authored-by: yiguolei <yiguolei@gmail.com>
2022-07-18 17:53:31 +08:00
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