DB2 - Problembeschreibung
Problem IC95356 | Status: Geschlossen |
GRAPH GENERATED WITH 'DB2EXPLN -G' DOES NOT CONTAIN STATISTICS | |
Produkt: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problembeschreibung: | |
When an explain plan is generated using 'db2expln -g' command, it does not contain the cost and the cardinality estimate for its operators. This can be demonstrated with a simple example as seen below: db2expln -d sample -t -g -q "values current timestamp" ******************** DYNAMIC *************************************** ==================== STATEMENT ========================================== Isolation Level = Cursor Stability Blocking = Block Unambiguous Cursors Query Optimization Class = 5 Partition Parallel = No Intra-Partition Parallel = No SQL Path = "SYSIBM", "SYSFUN", "SYSPROC", "SYSIBMADM" Statement: values current timestamp Section Code Page = 1208 Estimated Cost = 0.004800 Estimated Cardinality = 1.000000 Table Constructor | 1-Row(s) Return Data to Application | #Columns = 1 End of section Optimizer Plan: Operator (ID) RETURN ( 1) | TBSCAN ( 2) | TFunc: SYSIBM GENROW | |
Problem-Zusammenfassung: | |
**************************************************************** * USERS AFFECTED: * * Users below V10.5fp3 * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to 10.5.0.3 * **************************************************************** | |
Local-Fix: | |
verfügbare FixPacks: | |
DB2 Version 10.5 Fix Pack 3 for Linux, UNIX, and Windows | |
Lösung | |
Problem Fixed In 10.5.0.3 | |
Workaround | |
keiner bekannt / siehe Local-Fix | |
Weitere Daten | |
Datum - Problem gemeldet : Datum - Problem geschlossen : Datum - der letzten Änderung: | 27.08.2013 04.03.2014 04.03.2014 |
Problem behoben ab folgender Versionen (IBM BugInfos) | |
Problem behoben lt. FixList in der Version | |
10.5.0.3 | |
10.5.0.3 |