Problem Note 64342: Performance degradation might occur when you use a PROC SQL query to access SAS® Scalable Performance Data Server 5.4
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In Base SAS® software, performance degradation occurs when the following is true for the SQL procedure query:
- A SAS Scalable Performance Data Server (SPD Server) 5.4 table is referenced.
- You use the CALCULATED keyword multiple times to reference previously created variables.
- IP=YES is set on the SASSPDS LIBNAME statement.
This issue occurs because SPD Server 5.4 queries that contain functions are now passed to the SPD Server. Also, a much longer, inefficient query is used because the CALCULATED variable references are replaced with the original code that was used to create that new variable.
A workaround is to not use IP=YES in the LIBNAME statement.
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 | Base SAS | z/OS | 9.4 TS1M5 | |||
| z/OS 64-bit | 9.4 TS1M5 | |||||
| Microsoft® Windows® for x64 | 9.4 TS1M5 | |||||
| Microsoft Windows 8 Enterprise 32-bit | 9.4 TS1M5 | |||||
| Microsoft Windows 8 Enterprise x64 | 9.4 TS1M5 | |||||
| Microsoft Windows 8 Pro 32-bit | 9.4 TS1M5 | |||||
| Microsoft Windows 8 Pro x64 | 9.4 TS1M5 | |||||
| Microsoft Windows 8.1 Enterprise 32-bit | 9.4 TS1M5 | |||||
| Microsoft Windows 8.1 Enterprise x64 | 9.4 TS1M5 | |||||
| Microsoft Windows 8.1 Pro 32-bit | 9.4 TS1M5 | |||||
| Microsoft Windows 8.1 Pro x64 | 9.4 TS1M5 | |||||
| Microsoft Windows 10 | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2008 | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2008 R2 | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2008 for x64 | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2012 Datacenter | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2012 R2 Datacenter | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2012 R2 Std | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2012 Std | 9.4 TS1M5 | |||||
| Microsoft Windows Server 2016 | 9.4 TS1M5 | |||||
| Windows 7 Enterprise 32 bit | 9.4 TS1M5 | |||||
| Windows 7 Enterprise x64 | 9.4 TS1M5 | |||||
| Windows 7 Home Premium 32 bit | 9.4 TS1M5 | |||||
| Windows 7 Home Premium x64 | 9.4 TS1M5 | |||||
| Windows 7 Professional 32 bit | 9.4 TS1M5 | |||||
| Windows 7 Professional x64 | 9.4 TS1M5 | |||||
| Windows 7 Ultimate 32 bit | 9.4 TS1M5 | |||||
| Windows 7 Ultimate x64 | 9.4 TS1M5 | |||||
| 64-bit Enabled AIX | 9.4 TS1M5 | |||||
| 64-bit Enabled Solaris | 9.4 TS1M5 | |||||
| HP-UX IPF | 9.4 TS1M5 | |||||
| Linux for x64 | 9.4 TS1M5 | |||||
| Solaris for x64 | 9.4 TS1M5 | |||||
| SAS System | SAS Viya | Linux for x64 | 3.3 | 3.5 | Viya | |
| Microsoft® Windows® for x64 | 3.4 | 3.5 | Viya | Viya | ||
A fix for this issue for Base SAS 9.4_M6 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/D9T.html#64342A fix for this issue for Base SAS 9.4_M5 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/B6Q.html#64342| Type: | Problem Note |
| Priority: | high |
| Date Modified: | 2019-07-24 14:44:33 |
| Date Created: | 2019-06-17 11:18:57 |