[IMPALA-5871] KuduPartitionExpr incorrectly handles its child types

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: Impala 2.10.0
• Fix Version/s: Impala 2.11.0
• Component/s: Frontend
• Labels: crash kudu
• Epic Color: ghx-label-7
• Assignee: Thomas Tauber-Marshall
• Reporter: Thomas Tauber-Marshall
• Created: 30/Aug/17 23:56
• Updated: 06/Sep/17 18:35
• Resolved: 01/Sep/17 21:45

Description

KuduPartitionExpr takes input rows and sends them to Kudu to determine the partition the rows correspond to in a particular table's partitioning scheme.

If the input types are not the same as (but are compatible with) the types of the columns in the table, we need to cast the input rows. KuduPartitionExpr.analyze actually already does this, but the casts may be dropped in some cases, leading to a crash in the BE.

In particular, attempting to insert a string value into a Kudu timestamp column fails.

Issue Links

• is broken by: IMPALA-3742 INSERTs into Kudu tables should partition and sort