[core] fix inaccurate record count in snapshot for data-evolution tables#7779
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steFaiz wants to merge 2 commits into
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[core] fix inaccurate record count in snapshot for data-evolution tables#7779steFaiz wants to merge 2 commits into
steFaiz wants to merge 2 commits into
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The recordCount in the snapshot should be calculated strictly according to the file and should not be merged. Additionally, the primary key table has not been merged. |
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Thanks! I got that! |
JingsongLi
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May 14, 2026
Mirrors spark implementation. This PR originates from #7779. In our internal case, we find it hard for us to quickly get the real records num for data evolution tables, especially for each partition. Currently both snapshots system table and partitions system table only shows unmerged records num. We could get the accurate values by count(*) agg pushdown (probably with group by clause) through flink OLAP queries.
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Purpose
For data evolution table, record count in snapshot should have different computation logic.
Tests
See
org.apache.paimon.table.DataEvolutionTableTest