Matt McCline created HIVE-11394:
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Summary: Enhance EXPLAIN display for vectorization
Key: HIVE-11394
URL: https://issues.apache.org/jira/browse/HIVE-11394
Project: Hive
Issue Type: Bug
Components: Hive
Reporter: Matt McCline
Assignee: Matt McCline
Priority: Critical
Add detail to the EXPLAIN EXTENDED output showing why a Map or Reduce task was
not vectorized.
Always show Execution mode for EXPLAIN. That is, add showing "Execution mode:
not vectorized" in addition to today's "Execution mode: vectorized".
Some examples:
{code}
EXPLAIN:
Execution mode: not vectorized
EXPLAIN EXTENDED:
Execution mode: not vectorized; detail: configuration variable
--hive.vectorized.execution.enabled is false
Execution mode: not vectorized; detail: data type not supported -- array<string>
Execution mode: not vectorized; detail: feature not supported -- PTF operator
Execution mode: not vectorized; detail: input format not supported --
org.apache.hadoop.mapred.TextInputFormat doesn't provide vectorized input
{code}
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