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doris/be/test/vec/exec
Jibing-Li 3ebc98228d [feature wip](multi catalog)Support iceberg schema evolution. (#15836)
Support iceberg schema evolution for parquet file format.
Iceberg use unique id for each column to support schema evolution.
To support this feature in Doris, FE side need to get the current column id for each column and send the ids to be side.
Be read column id from parquet key_value_metadata, set the changed column name in Block to match the name in parquet file before reading data. And set the name back after reading data.
2023-01-20 12:57:36 +08:00
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