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The following commit(s) were added to refs/heads/branch-2.0 by this push:
new beb71fbea2c [fix](Nereids) Fixed a bug where the execution plan was
incorrect after ddl (#30224)
beb71fbea2c is described below
commit beb71fbea2cfabbd2facb0b5ec5847ecfa8456bb
Author: xy <whuxingy...@163.com>
AuthorDate: Wed Jan 24 12:02:49 2024 +0800
[fix](Nereids) Fixed a bug where the execution plan was incorrect after ddl
(#30224)
Co-authored-by: xingying01 <xingyin...@corp.netease.com>
---
.../implementation/LogicalOlapScanToPhysicalOlapScan.java | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/implementation/LogicalOlapScanToPhysicalOlapScan.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/implementation/LogicalOlapScanToPhysicalOlapScan.java
index 6bcf22a9adc..43436355ae1 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/implementation/LogicalOlapScanToPhysicalOlapScan.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/implementation/LogicalOlapScanToPhysicalOlapScan.java
@@ -94,7 +94,10 @@ public class LogicalOlapScanToPhysicalOlapScan extends
OneImplementationRuleFact
if (hashColumns.size() !=
hashDistributionInfo.getDistributionColumns().size()) {
for (Slot slot : baseOutput) {
for (Column column :
hashDistributionInfo.getDistributionColumns()) {
- if (((SlotReference)
slot).getColumn().get().equals(column)) {
+ // If the length of the column in the bucket key
changes after DDL, the length cannot be
+ // determined. As a result, some bucket fields are
lost in the query execution plan.
+ // So here we use the column name to avoid this
problem
+ if (((SlotReference)
slot).getColumn().get().getName().equalsIgnoreCase(column.getName())) {
hashColumns.add(slot.getExprId());
}
}
@@ -108,7 +111,10 @@ public class LogicalOlapScanToPhysicalOlapScan extends
OneImplementationRuleFact
List<ExprId> hashColumns = Lists.newArrayList();
for (Slot slot : output) {
for (Column column :
hashDistributionInfo.getDistributionColumns()) {
- if (((SlotReference)
slot).getColumn().get().equals(column)) {
+ // If the length of the column in the bucket key
changes after DDL, the length cannot be
+ // determined. As a result, some bucket fields are
lost in the query execution plan.
+ // So here we use the column name to avoid this problem
+ if (((SlotReference)
slot).getColumn().get().getName().equalsIgnoreCase(column.getName())) {
hashColumns.add(slot.getExprId());
}
}
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