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https://issues.apache.org/jira/browse/ARROW-6083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16904815#comment-16904815
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Ji Liu commented on ARROW-6083:
-------------------------------
[[email protected]] Thanks for your effort and sorry for always forgetting
to specify the module :)
> [Java] Refactor Jdbc adapter consume logic
> ------------------------------------------
>
> Key: ARROW-6083
> URL: https://issues.apache.org/jira/browse/ARROW-6083
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.15.0
>
> Time Spent: 7.5h
> Remaining Estimate: 0h
>
> Jdbc adapter read from {{ResultSet}} looks like:
> while (rs.next()) {
> for (int i = 1; i <= columnCount; i++) {
> jdbcToFieldVector(
> rs,
> i,
> rs.getMetaData().getColumnType(i),
> rowCount,
> root.getVector(rsmd.getColumnName(i)),
> config);
> }
> rowCount++;
> }
> And in {{jdbcToFieldVector}} has lots of switch-case, that is to see, for
> every single value from ResultSet we have to do lots of analyzing conditions.
> I think we could optimize this using consumer/delegate like avro adapter.
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