0001342: Upgrade to 3.5.0 causes sym_trigger_hist to be rebuilt. Need…

… default value.

symmetric-core/src/main/resources/symmetric-schema.xml

@@ -363,9 +363,9 @@
         <column name="name_for_update_trigger" type="VARCHAR" size="255" required="false"  description="The name used when the insert trigger was created." />
         <column name="name_for_insert_trigger" type="VARCHAR" size="255" required="false"  description="The name used when the update trigger was created." />
         <column name="name_for_delete_trigger" type="VARCHAR" size="255" required="false"  description="The name used when the delete trigger was created." />
-        <column name="table_hash" type="BIGINT" required="true"  description=" A hash of the table definition, used to detect changes in the definition." />
-        <column name="trigger_row_hash" type="BIGINT" required="true"  description="A hash of the trigger definition.  If changes are detected to the values that affect a trigger definition, then the trigger will be regenerated." />
-        <column name="trigger_template_hash" type="BIGINT" required="true" description="A hash of the trigger text.  If changes are detected to the values that affect a trigger text then the trigger will be regenerated." />
+        <column name="table_hash" type="BIGINT" required="true" default="0"  description=" A hash of the table definition, used to detect changes in the definition." />
+        <column name="trigger_row_hash" type="BIGINT" required="true" default="0" description="A hash of the trigger definition.  If changes are detected to the values that affect a trigger definition, then the trigger will be regenerated." />
+        <column name="trigger_template_hash" type="BIGINT" required="true" default="0" description="A hash of the trigger text.  If changes are detected to the values that affect a trigger text then the trigger will be regenerated." />
         <column name="column_names" type="LONGVARCHAR" required="true"  description="The column names defined on the table. The column names are stored in comma-separated values (CSV) format." />
         <column name="pk_column_names" type="LONGVARCHAR" required="true"  description="The primary key column names defined on the table. The column names are stored in comma-separated values (CSV) format." />
         <column name="last_trigger_build_reason" size="1" type="CHAR" required="true"  description="The following reasons for a change are possible: New trigger that has not been created before (N); Schema changes in the table were detected (S); Configuration changes in Trigger (C); Trigger was missing (T)." />