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Problem IT43422
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Status: Closed |
SELECT CHOOSING SLOWER QUERYPLAN IN 14.10. THAN IN 11.50 - RELATED TO MULTI INDEX SCAN
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| product: |
INFORMIX SERVER / 5725A3900 / E10 - |
| Problem description: |
A select is choosing a slower queryplan in 14.10
11.50. uses multi index scan
1) informix.tab1: INDEX PATH
(1) Index Name: informix.ind3
Index Keys: c1 (Serial, fragments: ALL)
Lower Index Filter: informix.tab1.c1[1,10] =
(2) Index Name: informix.ind4
Index Keys: c2 (Serial, fragments: ALL)
Lower Index Filter: informix.tab1.c2[1,10] =
14.10 puts it into the filter
1) informix.tab1: INDEX PATH
Filters: ((tab1.c2[1,10] = OR
informix.tab1.c1[1,10] = ) |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC16 and 14.10.xC11. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Informix Server 12.10.xC16 or 14.10.xC11 (when *
* available). *
**************************************************************** |
| Local Fix: |
|
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC16 and 14.10.xC11. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Informix Server 12.10.xC16 or 14.10.xC11 (when *
* available). *
**************************************************************** |
| Comment |
Fixed in Informix Server 12.10.xC16 and 14.10.xC11. |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 23.03.2023
18.05.2023
21.06.2023 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
