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https://issues.apache.org/jira/browse/IMPALA-14553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Smith resolved IMPALA-14553.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> Speed up generate-schema-statements
> -----------------------------------
>
> Key: IMPALA-14553
> URL: https://issues.apache.org/jira/browse/IMPALA-14553
> Project: IMPALA
> Issue Type: Task
> Components: Infrastructure
> Reporter: Michael Smith
> Assignee: Michael Smith
> Priority: Minor
> Fix For: Impala 5.0.0
>
>
> Just generating the schemas for functional-query with
> {code}
> ./testdata/bin/generate-schema-statements.py --workload=functional-query
> {code}
> can take over 2 minutes. Most of that time is spent handling eval statements
> in functional_schema_template.sql (the shell commands that start with {{`}}).
> {{eval_section}} is called for each row in test_vectors, even though the
> operations don't change.
> We can speed this up by running {{eval_section}} once for each field, and
> running them in parallel.
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