[hibernate-issues] [JIRA] (HHH-14080) Informix union all support

[LAdO (JIRA)]

LAdO ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A1457ac20-703a-4313-96f5-fa81da333677 ) *created* an issue

Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 ) / Improvement ( https://hibernate.atlassian.net/browse/HHH-14080?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 ) HHH-14080 ( https://hibernate.atlassian.net/browse/HHH-14080?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 ) Informix union all support ( https://hibernate.atlassian.net/browse/HHH-14080?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 )

Issue Type: Improvement Assignee: Unassigned Components: hibernate-core Created: 19/Jun/2020 05:47 AM Priority: Major Reporter: LAdO ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3A1457ac20-703a-4313-96f5-fa81da333677 )

UNION ALL syntax is also supported in Informix 7.3. Null value casting in select clause has been supported since version 9.4, so the current default implementation does not work anyway. InformixDialect declares support for Informix 7.3 but also the current sequence support was not until version 9.4.
SQL Guide 7.3 ( http://informixsoftware.com/ids073/Guide%20to%20SQL%20Syntax%20Version%2073.pdf )
SQL Guide 9.4 ( http://informixsoftware.com/ids094/Guide%20to%20SQL%20Syntax.pdf )

( https://hibernate.atlassian.net/browse/HHH-14080#add-comment?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-14080#add-comment?atlOrigin=eyJpIjoiODc1ZWIxY2YyOWU3NDcwNTg3MmQ3ZGE3MjY2YTNiY2EiLCJwIjoiaiJ9 )

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