[fix](mtmv) Fix compensate union all wrongly when query rewrite by materialized view #40803
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run buildall |
TPC-H: Total hot run time: 42642 ms |
TPC-DS: Total hot run time: 199281 ms |
ClickBench: Total hot run time: 30.96 s |
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run buildall |
TPC-H: Total hot run time: 43317 ms |
TPC-H: Total hot run time: 41301 ms |
TPC-DS: Total hot run time: 199427 ms |
ClickBench: Total hot run time: 32.93 s |
morrySnow
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Sep 18, 2024
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| && ((SlotReference) expr).isColumnFromTable() | ||
| && ((SlotReference) expr).getColumn().get().getName().equals(relatedCol)).isEmpty(); |
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run buildall |
TPC-H: Total hot run time: 41754 ms |
TPC-DS: Total hot run time: 194879 ms |
ClickBench: Total hot run time: 33.13 s |
morrySnow
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starocean999
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gavinchou
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…terialized view (#40803) ## Proposed changes This is brought by #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.
seawinde
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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.
yiguolei
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Proposed changes
This is brought by #36056
Not all query after rewritten successfully can compensate union all
Such as:
mv def sql is as following, partition column is a
Query is as following:
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.