Informix - Problem description
Problem IT30877 | Status: Closed |
UPDATE STATS LOW USING SAMPLING CAN CAUSE -NAN VALUES IN SYSFRAGMENTS AND SYSINDEXES IN INDEX WITH FOT | |
product: | |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 | |
Problem description: | |
Consider a large table with 600 Mio rows and on this table there is a FOT index created on a serial column with unique values. When an update statistics low on this table/index is made and USTLOW_SAMPLE is set to 1, every second run on this update statistics returns -1223 on selects on sysfragments and sysindexes The problem column on sysfragments is the leaves colum. Additionally, queries on this table having a filter which can use the FOT index as the access path, it may return an -768 during the optimization of the query. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to Informix Server 12.10.xC14 or 14.10.xC4. * **************************************************************** | |
Local Fix: | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to Informix Server 12.10.xC14 or 14.10.xC4. * **************************************************************** | |
Comment | |
Fixed in Informix Server 12.10.xC14 and 14.10.xC4. | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 07.11.2019 27.02.2020 27.02.2020 |
Problem solved at the following versions (IBM BugInfos) | |
12.10.xC14, 14.10.xC4 | |
Problem solved according to the fixlist(s) of the following version(s) |