mysqlc: Fix float, double and numeric types

Change-Id: I9d0b989735e736c9c35d8acf4ea1b072eddf7437
Reviewed-on: https://gerrit.libreoffice.org/58744
Tested-by: Jenkins
Reviewed-by: Tamás Bunth <btomi96@gmail.com>

mysqlc/source/mysqlc_prepared_resultset.cxx

@@ -239,6 +239,9 @@ double SAL_CALL OPreparedResultSet::getDouble(sal_Int32 column)
     }
     m_bWasNull = false;
 
+    if (m_aFields[column - 1].type == MYSQL_TYPE_FLOAT)
+        return *reinterpret_cast<float*>(m_aData[column - 1].buffer);
+
     return *reinterpret_cast<double*>(m_aData[column - 1].buffer);
 }
 

mysqlc/source/mysqlc_preparedstatement.cxx

@@ -439,23 +439,24 @@ void SAL_CALL OPreparedStatement::setObjectWithInfo(sal_Int32 parameterIndex, co
     case DataType::DECIMAL:
     case DataType::NUMERIC:
     {
-        double nValue(0);
+        double nValue(0.0);
+        rtl::OUString sValue;
         if ( value >>= nValue )
         {
             setDouble( parameterIndex, nValue );
             break;
         }
-        else
+        else if ( value >>= sValue )
         {
-            rtl::OUString sValue;
-            if( value >>= sValue )
-            {
-                m_binds[nIndex].buffer_type = MYSQL_TYPE_NEWDECIMAL;
-                mysqlc_sdbc_driver::resetSqlVar(&m_binds[nIndex].buffer, sValue.getStr(), MYSQL_TYPE_LONGLONG, sValue.getLength());
-                m_bindMetas[nIndex].is_null = 0;
-            }
-
+            rtl::OString sAscii = rtl::OUStringToOString(sValue, getOwnConnection()->getConnectionEncoding());
+            std::stringstream sStream{sAscii.getStr()};
+            sStream >> nValue;
+            m_binds[nIndex].buffer_type = MYSQL_TYPE_DOUBLE;
+            mysqlc_sdbc_driver::resetSqlVar(&m_binds[nIndex].buffer, &nValue, MYSQL_TYPE_DOUBLE, sValue.getLength());
+            m_bindMetas[nIndex].is_null = 0;
+            break;
         }
+
 #if defined __GNUC__ && __GNUC__ >= 7
         [[fallthrough]];
 #else