Fixes invalid use of statics

Multiple database connections could have differing ideas on the return
value for defaultCase. The cost of the call is so minimal that caching
is unnecessary, and static caching is very very wrong.

Reviewed-by: Justin McPherson

1 files changed, 24 insertions, 30 deletions

diff --git a/src/sql/drivers/odbc/qsql_odbc.cpp b/src/sql/drivers/odbc/qsql_odbc.cpp
index 6a8609e..06ee3e1 100644
--- a/src/sql/drivers/odbc/qsql_odbc.cpp
+++ b/src/sql/drivers/odbc/qsql_odbc.cpp
@@ -743,37 +743,31 @@ void QODBCDriverPrivate::splitTableQualifier(const QString & qualifier, QString
 
 QODBCDriverPrivate::DefaultCase QODBCDriverPrivate::defaultCase() const
 {
-    static bool isInitialized = false;
-    static DefaultCase ret;
-
-    if (!isInitialized) {
-        SQLUSMALLINT casing;
-        int r = SQLGetInfo(hDbc,
-                SQL_IDENTIFIER_CASE,
-                &casing,
-                sizeof(casing),
-                NULL);
-        if ( r != SQL_SUCCESS)
-            ret = Lower;//arbitrary case if driver cannot be queried
-        else {
-            switch (casing) {
-                case (SQL_IC_UPPER):
-                    ret = Upper;
-                    break;
-                case (SQL_IC_LOWER):
-                    ret = Lower;
-                    break;
-                case (SQL_IC_SENSITIVE):
-                    ret = Sensitive;
-                    break;
-                case (SQL_IC_MIXED):
-                    ret = Mixed;
-                    break;
-                default:
-                    ret = Upper;
-            }
+    DefaultCase ret;
+    SQLUSMALLINT casing;
+    int r = SQLGetInfo(hDbc,
+            SQL_IDENTIFIER_CASE,
+            &casing,
+            sizeof(casing),
+            NULL);
+    if ( r != SQL_SUCCESS)
+        ret = Mixed;//arbitrary case if driver cannot be queried
+    else {
+        switch (casing) {
+            case (SQL_IC_UPPER):
+                ret = Upper;
+                break;
+            case (SQL_IC_LOWER):
+                ret = Lower;
+                break;
+            case (SQL_IC_SENSITIVE):
+                ret = Sensitive;
+                break;
+            case (SQL_IC_MIXED):
+            default:
+                ret = Mixed;
+                break;
         }
-        isInitialized = true;
     }
     return ret;
 }