[fix](mtmv) Fix compensate union all wrongly when query rewrite by materialized view #40803#42019
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yiguolei merged 2 commits intoapache:branch-2.1from Oct 18, 2024
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…terialized view (apache#40803) This is brought by apache#36056 Not all query after rewritten successfully can compensate union all Such as: mv def sql is as following, partition column is a ```sql select a, b, count(*) from t1 group by a, b ``` Query is as following: ```sq select count(*) from t1 ``` the result is +----------+ | count(*) | +----------+ | 24 | +----------+ after rewritten by materialized view successfully If mv part partition is invalid, can not compensate union all, because result is wrong after compensate union all. +----------+ | count(*) | +----------+ | 24 | | 3 | +----------+ This pr fix this.
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Proposed changes
pr: #40803
commitId: d7e5d46