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https://issues.apache.org/jira/browse/HIVE-11338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15260329#comment-15260329
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Zoltan Haindrich commented on HIVE-11338:
-----------------------------------------
HiveConnection doesn't support transactions; and having autoCommit=true is for
communicating this; i've checked setAutoCommit()...and it already contains a
great exception to advertise this.
{code}
@Override
public void setAutoCommit(boolean autoCommit) throws SQLException {
// Per JDBC spec, if the connection is closed a SQLException should be
thrown.
if(isClosed) {
throw new SQLException("Connection is closed");
}
// The auto-commit mode is always enabled for this connection. Per JDBC
spec,
// if setAutoCommit is called and the auto-commit mode is not changed, the
call is a no-op.
if (!autoCommit) {
LOG.warn("Request to set autoCommit to false; Hive does not support
autoCommit=false.");
SQLWarning warning = new SQLWarning("Hive does not support
autoCommit=false");
if (warningChain == null) warningChain = warning;
else warningChain.setNextWarning(warning);
}
}
{code}
> Method getAutocommit() allways returns true
> -------------------------------------------
>
> Key: HIVE-11338
> URL: https://issues.apache.org/jira/browse/HIVE-11338
> Project: Hive
> Issue Type: Bug
> Components: API
> Reporter: cristian cadar
> Priority: Blocker
>
> Method {{getAutocommit()}} always returns {{true}}.
> This means your connection is transacted. Please change it to {{false}},
> since HiveConnection does not support transactions.
> {{org.apache.hive.jdbc.HiveConnection}}
> class {{HiveConnection}}
> {code}
> @Override
> public boolean getAutoCommit() throws SQLException {
> return true;
> }
> {code}
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