How to Efficiently Find Anniversaries Within the Next 14 Days, Ignoring the Year?

How to Ignore Years in Date Math

Problem:
Select dates that have an anniversary in the next 14 days, excluding the year component.

Original Query:

SELECT * FROM events
WHERE EXTRACT(month FROM "date") = 3
AND EXTRACT(day FROM "date") <p><strong>Issue:</strong><br>Months wrap, so this query may miss anniversaries that occur after the end of the current month.</p><p><strong>Solutions:</strong></p><p><strong>1. Using Generate Series:</strong></p><pre class="brush:php;toolbar:false">SELECT * FROM events
WHERE (date > '2013-03-01' AND date <p>This query ignores the year by explicitly specifying the date range. However, it's not flexible for different anniversary periods.</p><p><strong>2. Using Date Math:</strong></p><pre class="brush:php;toolbar:false">SELECT event_date FROM event_table
WHERE (event_date >= CURRENT_DATE AND event_date <p>This query uses date math to calculate the anniversary date range. It's more flexible but may perform slower for large tables.</p><p><strong>3. Using a Function (Recommended):</strong></p><pre class="brush:php;toolbar:false">CREATE FUNCTION get_anniversary(date date) RETURNS date AS
BEGIN
  RETURN date PARTITION BY YEAR;
END;

SELECT event_date FROM event_table
WHERE get_anniversary(event_date) >= CURRENT_DATE
AND get_anniversary(event_date) <p>This query uses a function to remove the year from the date. It creates a partition for each unique year, making it faster for large tables.</p>

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