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fix bug about crash issure when partition created with sub-partition #38390

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fix bug about crash issure when partition created with sub-partition #38390

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4 changes: 4 additions & 0 deletions pkg/ccl/partitionccl/partition.go
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Original file line number Diff line number Diff line change
Expand Up @@ -179,6 +179,10 @@ func createPartitioningImpl(
cols = append(cols, col)
if string(partBy.Fields[i]) != col.Name {
n := colOffset + len(partBy.Fields)
// if n exceed the number of index column, set it to max number of index column
if n > len(indexDesc.ColumnNames) {
n = indexDesc.ColumnNames
}
return partDesc, fmt.Errorf(
"declared partition columns (%s) do not match first %d columns in index being partitioned (%s)",
partitioningString(), n, strings.Join(indexDesc.ColumnNames[:n], ", "))
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