init

dbt/macros/data_transform/sequence_next_value.sql

@@ -0,0 +1,33 @@
+{% macro sequence_next_value(sequence_name, check_disable=false) %}
+{# macro checks if a function for this sequence exists,
+if it does, the function is used
+if not, the standard command is used  
+check can be disabled by passing true in the 2nd paramater
+#}
+{% if execute %}
+    {% if not check_disable %}
+        {% set get_func %}
+            select count(*)
+            from all_objects
+            where object_type = 'FUNCTION'
+            and status = 'VALID'
+            and owner || '.' || object_name = upper('{{ sequence_name }}_fnc')
+        {% endset %}
+
+        {% set result = run_query(get_func) %}
+        {% set fnc_count = result.columns[0].values()[0] %}
+    {% else %}
+        {% set fnc_count = 0 %}
+    {% endif %}
+
+    {% if fnc_count > 0 %}
+        {% set nextvalue = sequence_name ~ '_fnc()' %}
+    {% else %}
+        {% set nextvalue = sequence_name ~ '.nextval'%}
+    {% endif %}
+
+    {{ return(nextvalue) }}
+
+{% endif %}
+
+{% endmacro %}