Problem Note 59874: Queries using SAS/ACCESS® Interface to Netezza take a long time to complete
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A query accessing Netezza tables might take longer to complete than the same query accessing the same data in a DB2 database.
Internally, SAS/ACCESS Interface to Netezza does not make a call to obtain a row-count estimate for each table. SAS/ACCESS® Interface to DB2 does make the call for a row-count estimate, and then uses the count estimates when creating the SQL optimizer execution plan. This behavior results in the SAS/ACCESS Interface to DB2 SQL procedure having a different optimizer plan and faster execution times than SAS/ACCESS Interface to Netezza.
To work around this issue, SAS/ACCESS Interface to Netezza users should create SAS data sets, and then perform any joins on those data sets rather than using Netezza tables.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS/ACCESS Interface to Netezza | Microsoft® Windows® for x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 |
| Microsoft Windows 8 Enterprise 32-bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8 Enterprise x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8 Pro 32-bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8 Pro x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8.1 Enterprise 32-bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8.1 Enterprise x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8.1 Pro 32-bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows 8.1 Pro x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 9.3_M1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 Enterprise Edition | 9.3_M1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 Standard Edition | 9.3_M1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 for x64 | 9.3_M1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2008 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2008 R2 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2008 for x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2012 Datacenter | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2012 R2 Datacenter | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2012 R2 Std | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows Server 2012 Std | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Microsoft Windows XP Professional | 9.3_M1 | 9.3 TS1M2 | ||||
| Windows 7 Enterprise 32 bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Enterprise x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Home Premium 32 bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Home Premium x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Professional 32 bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Professional x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Ultimate 32 bit | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows 7 Ultimate x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Windows Vista | 9.3_M1 | 9.3 TS1M2 | ||||
| Windows Vista for x64 | 9.3_M1 | 9.3 TS1M2 | ||||
| 64-bit Enabled AIX | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| 64-bit Enabled HP-UX | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| 64-bit Enabled Solaris | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| HP-UX IPF | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Linux | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
| Linux for x64 | 9.3_M1 | 9.41 | 9.3 TS1M2 | 9.4 TS1M4 | ||
A fix for this issue for SAS/ACCESS Interface to Netezza 9.4_M3 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/Z29.html#59874| Type: | Problem Note |
| Priority: | high |
| Date Modified: | 2017-02-16 13:37:34 |
| Date Created: | 2017-02-02 11:35:04 |