Fix MaterializedView select with CTE bug #5165
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EmmyMiao87
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Dec 29, 2020
| private final PlannerContext ctx_; | ||
| private final ArrayList<ScanNode> scanNodes = Lists.newArrayList(); | ||
| private Map<UUID, List<ScanNode>> selectStmtToScanNodes = Maps.newHashMap(); | ||
| private Map<Analyzer, List<ScanNode>> selectStmtToScanNodes = Maps.newHashMap(); |
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Is the Analyzer of CTE same as outer query?
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No.
For SQL
select id, t1 from(
select id, a as t1 from t
union all
select id, aaa as t1 from t
) k2;
The analyzer instances for select id, a as t1 from t and select id, aaa as t1 from t are different.
Such as, The analyzer instances for select id, a as t1 from t is 6177, which ancestors are[6219,6220,6221],
The analyzer instances for select id, aaa as t1 from t is 6225, which ancestors are[6247,6220,6221].
EmmyMiao87
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area/materialized-view
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|
Hi, @kangkaisen , there are unused imports: Please fix it first. |
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Author
@morningman done |
EmmyMiao87
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Jan 26, 2021
Change-Id: I48d6e57ec0beb91606a464f9eb4c45aadec1fc27
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Fix #5164
For different Analyzer scopes, the id for SelectStmt maybe the same, but the Analyzer instance always unique