14 lines
610 B
MySQL
14 lines
610 B
MySQL
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/*
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This macro displays a metric value common in two sources, current and previous,
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and computes the relative increment of current vs. previous.
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It's designed to be placed within a SELECT statement.
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It ensure safe divide by zero division by applying a nullif function.
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*/
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{% macro calculate_safe_relative_increment(metric, current='current', previous='previous_year') %}
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{{ current }}.{{ metric }},
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{{ previous }}.{{ metric }} as {{ previous }}_{{ metric }},
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cast({{ current }}.{{ metric }} as decimal) / nullif({{ previous }}.{{ metric }},0) - 1 as relative_increment_{{ metric }}
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{% endmacro %}
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