Waiting for PostgreSQL 19 – Add IGNORE NULLS/RESPECT NULLS option to Window functions.
Read OriginalThe article details a new feature in PostgreSQL 19 that adds IGNORE NULLS and RESPECT NULLS options to window functions (lead, lag, first_value, last_value, nth_value). It explains the functionality, performance considerations, and includes a practical demonstration with SQL examples showing how the feature works with null values in a dataset.
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