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https://issues.apache.org/jira/browse/TORQUE-365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Max Philipp Wriedt updated TORQUE-365:
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Description:
When passing a Criteria which has been modified with "setDistinct()" the
CountHelper creates a wrong SQL-Statement containing "SELECT COUNT(DISTINCT
*)". This is not valid SQL.
A common workaround is to set a column to count while creating the CountHelper.
If I am not wrong we could also solve this problem inside the count()-function
of the CountHelper itself, as there is already a handler for DISTINCT cases.
{code:java}
boolean distinct = isAndSetDistinct(criteriaSelectModifiers) &&
!Objects.equals(columnName, "*"); //
org.apache.torque.utils.CountHelper:202{code}
This could probably set "DISTINCT" directly behind the SELECT, but not inside
the "COUNT()" clause, generating at least valid SQL.
was:
When passing a Criteria which has been modified with "setDistinct()" the
CountHelper creates a wrong SQL-Statement containing "SELECT COUNT(DISTINCT
*)". This is not valid SQL.
A common workaround is to set a column to count while creating the CountHelper.
If I am not wrong we could also solve this problem inside the count()-function
of the CountHelper itself, as there is already a handler for DISTINCT cases.
{code:java}
boolean distinct = isAndSetDistinct(criteriaSelectModifiers) &&
!Objects.equals(columnName, "*");{code}
This could probably set "DISTINCT" directly behind the SELECT, but not inside
the "COUNT()" clause, generating at least valid SQL.
> CountHelper doesn't work, when Criteria has "setDisctint()"
> -----------------------------------------------------------
>
> Key: TORQUE-365
> URL: https://issues.apache.org/jira/browse/TORQUE-365
> Project: Torque
> Issue Type: Bug
> Components: Runtime
> Affects Versions: 5.1
> Reporter: Max Philipp Wriedt
> Priority: Minor
> Labels: CountHelper, distinct
>
> When passing a Criteria which has been modified with "setDistinct()" the
> CountHelper creates a wrong SQL-Statement containing "SELECT COUNT(DISTINCT
> *)". This is not valid SQL.
> A common workaround is to set a column to count while creating the
> CountHelper.
> If I am not wrong we could also solve this problem inside the
> count()-function of the CountHelper itself, as there is already a handler for
> DISTINCT cases.
> {code:java}
> boolean distinct = isAndSetDistinct(criteriaSelectModifiers) &&
> !Objects.equals(columnName, "*"); //
> org.apache.torque.utils.CountHelper:202{code}
> This could probably set "DISTINCT" directly behind the SELECT, but not inside
> the "COUNT()" clause, generating at least valid SQL.
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