0001550: Sybase ASE : Lost precision from Datetime fields

symmetric-assemble/src/docbook/databases.xml

@@ -673,6 +673,13 @@ ontape -s -L 0
         <para>
             Active Server Enterprise (ASE) was tested using the jConnect JDBC driver. The jConnect JDBC driver should be placed in the "lib" folder.
         </para>
+        <para>
+            Columns of type DATETIME are accurate to 1/300th of a second, which means that the last digit of the milliseconds portion will end with 0, 3, or 6.
+            An incoming DATETIME synced from another database will also have its millisconds rounded to one of these digits
+            (0 and 1 become 0; 2, 3, and 4 become 3; 5, 6, 7, and 8 become 6; 9 becomes 10). 
+            If DATETIME is used as the primary key or as one of the columns to detect a conflict, then conflict resolution could fail unless
+            the milliseconds are rounded in the same fashion on the source system.
+        </para>
         <para>
             On ASE, each new trigger in a table for the same operation (insert, update, or delete) overwrites the previous one.
             No warning message displays before the overwrite occurs. When SymmetricDS is installed and configured to synchronize a table, it

symmetric-client/src/main/java/org/jumpmind/symmetric/db/ase/AseTriggerTemplate.java

@@ -46,7 +46,7 @@ public AseTriggerTemplate(ISymmetricDialect symmetricDialect) {
         emptyColumnTemplate = "''" ;
         stringColumnTemplate = "case when $(tableAlias)." + quote + "$(columnName)" + quote + " is null then '' else '\"' + str_replace(str_replace($(tableAlias)." + quote + "$(columnName)" + quote + ",'\\','\\\\'),'\"','\\\"') + '\"' end" ;
         numberColumnTemplate = "case when $(tableAlias)." + quote + "$(columnName)" + quote + " is null then '' else ('\"' + convert(varchar,$(tableAlias)." + quote + "$(columnName)" + quote + ") + '\"') end" ;
-        datetimeColumnTemplate = "case when $(tableAlias)." + quote + "$(columnName)" + quote + " is null then '' else ('\"' + str_replace(convert(varchar,$(tableAlias)." + quote + "$(columnName)" + quote + ",102),'.','-') + ' ' + convert(varchar,$(tableAlias)." + quote + "$(columnName)" + quote + ",108) + '\"') end" ;
+        datetimeColumnTemplate = "case when $(tableAlias)." + quote + "$(columnName)" + quote + " is null then '' else ('\"' + str_replace(convert(varchar,$(tableAlias)." + quote + "$(columnName)" + quote + ",102),'.','-') + ' ' + right('00'+convert(varchar,datepart(HOUR,$(tableAlias)." + quote + "$(columnName)" + quote + ")),2)+':'+right('00'+convert(varchar,datepart(MINUTE,$(tableAlias)." + quote + "$(columnName)" + quote + ")),2)+':'+right('00'+convert(varchar,datepart(SECOND,$(tableAlias)." + quote + "$(columnName)" + quote + ")),2)+'.'+right('000'+convert(varchar,datepart(MILLISECOND,$(tableAlias)." + quote + "$(columnName)" + quote + ")),3) + '\"') end" ;
         clobColumnTemplate = "case when datalength($(origTableAlias)." + quote + "$(columnName)" + quote + ") is null or datalength($(origTableAlias)." + quote + "$(columnName)" + quote + ")=0 then '' else '\"' + str_replace(str_replace(cast($(origTableAlias)." + quote + "$(columnName)" + quote + " as varchar(16384)),'\\','\\\\'),'\"','\\\"') + '\"' end" ;
         blobColumnTemplate = "case when $(origTableAlias)." + quote + "$(columnName)" + quote + " is null then '' else '\"' + bintostr(convert(varbinary(16384),$(origTableAlias)." + quote + "$(columnName)" + quote + ")) + '\"' end" ;
         imageColumnTemplate = "case when datalength($(origTableAlias)." + quote + "$(columnName)" + quote + ") is null or datalength($(origTableAlias)." + quote + "$(columnName)" + quote + ")=0 then '' else '\"' + bintostr(convert(varbinary(16384),$(origTableAlias)." + quote + "$(columnName)" + quote + ")) + '\"' end" ;