2 files changed, 19 insertions, 4 deletions
diff --git a/connectivity/source/drivers/mysql/YTable.cxx b/connectivity/source/drivers/mysql/YTable.cxx
index 8680ac2079..5e4cff3459 100644
--- a/connectivity/source/drivers/mysql/YTable.cxx
+++ b/connectivity/source/drivers/mysql/YTable.cxx
@@ -284,7 +284,7 @@ void SAL_CALL OMySQLTable::alterColumnByName( const ::rtl::OUString& colName, co
             const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );
             sSql += ::dbtools::quoteName(sQuote,colName);
             sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" "));
-            sSql += ::dbtools::createStandardColumnPart(descriptor,getConnection(),getTypeCreatePattern());
+            sSql += OTables::adjustSQL(::dbtools::createStandardColumnPart(descriptor,getConnection(),getTypeCreatePattern()));
             executeStatement(sSql);
         }
         m_pColumns->refresh();
@@ -313,7 +313,7 @@ void OMySQLTable::alterColumnType(sal_Int32 nNewType,const ::rtl::OUString& _rCo
     ::comphelper::copyProperties(_xDescriptor,xProp);
     xProp->setPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_TYPE),makeAny(nNewType));
 
-    sSql += ::dbtools::createStandardColumnPart(xProp,getConnection(),getTypeCreatePattern());
+    sSql += OTables::adjustSQL(::dbtools::createStandardColumnPart(xProp,getConnection(),getTypeCreatePattern()));
     executeStatement(sSql);
 }
 // -----------------------------------------------------------------------------
diff --git a/connectivity/source/drivers/mysql/YTables.cxx b/connectivity/source/drivers/mysql/YTables.cxx
index 8b2626d612..9af4b9f630 100644
--- a/connectivity/source/drivers/mysql/YTables.cxx
+++ b/connectivity/source/drivers/mysql/YTables.cxx
@@ -187,12 +187,27 @@ void OTables::dropObject(sal_Int32 _nPos,const ::rtl::OUString _sElementName)
     }
 }
 // -------------------------------------------------------------------------
+::rtl::OUString OTables::adjustSQL(const ::rtl::OUString& _sSql)
+{
+    ::rtl::OUString sSQL = _sSql;
+    static const ::rtl::OUString s_sUNSIGNED(RTL_CONSTASCII_USTRINGPARAM("UNSIGNED"));
+    sal_Int32 nIndex = sSQL.indexOf(s_sUNSIGNED);
+    while(nIndex != -1 )
+    {
+        sal_Int32 nParen = sSQL.indexOf(')',nIndex);
+        sal_Int32 nPos = nIndex + s_sUNSIGNED.getLength();
+        ::rtl::OUString sNewUnsigned( sSQL.copy(nPos,nParen - nPos + 1));
+        sSQL = sSQL.replaceAt(nIndex,s_sUNSIGNED.getLength()+sNewUnsigned.getLength(),sNewUnsigned + s_sUNSIGNED);
+        nIndex = sSQL.indexOf(s_sUNSIGNED,nIndex + s_sUNSIGNED.getLength()+sNewUnsigned.getLength());
+    }
+    return sSQL;
+}
+// -------------------------------------------------------------------------
 void OTables::createTable( const Reference< XPropertySet >& descriptor )
 {
     const Reference< XConnection > xConnection = static_cast<OMySQLCatalog&>(m_rParent).getConnection();
     static const ::rtl::OUString s_sCreatePattern(RTL_CONSTASCII_USTRINGPARAM("(M,D)"));
-    const ::rtl::OUString aSql = ::dbtools::createSqlCreateTableStatement(descriptor,xConnection,s_sCreatePattern);
-
+    const ::rtl::OUString aSql = adjustSQL(::dbtools::createSqlCreateTableStatement(descriptor,xConnection,s_sCreatePattern));
     Reference< XStatement > xStmt = xConnection->createStatement(  );
     if ( xStmt.is() )
     {