From a5974f3865dc2d84c1fe23c21ccc12ff079f3378 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@datageekery.com>
Date: Wed, 20 Mar 2024 18:04:05 +0100
Subject: [PATCH] [jOOQ/jOOQ#15732] Support datetime arithmetic

---
 jOOQ/src/main/java/org/jooq/impl/DateAdd.java    | 7 +++++++
 jOOQ/src/main/java/org/jooq/impl/Expression.java | 1 +
 2 files changed, 8 insertions(+)

diff --git a/jOOQ/src/main/java/org/jooq/impl/DateAdd.java b/jOOQ/src/main/java/org/jooq/impl/DateAdd.java
index 94e1245acc..d57242bcf8 100644
--- a/jOOQ/src/main/java/org/jooq/impl/DateAdd.java
+++ b/jOOQ/src/main/java/org/jooq/impl/DateAdd.java
@@ -136,7 +136,14 @@ implements
             }
 
             case DUCKDB: {
+                if (getDataType().isDate())
+                    ctx.visit(K_CAST).sql('(');
+
                 ctx.visit(N_DATE_ADD).sql('(').visit(date).sql(", ").visit(K_INTERVAL).sql(' ').visit(inline(1)).sql(' ').visit(standardKeyword()).sql(" * ").visit(interval).sql(')');
+
+                if (getDataType().isDate())
+                    ctx.sql(' ').visit(K_AS).sql(' ').visit(K_DATE).sql(')');
+
                 break;
             }
 
diff --git a/jOOQ/src/main/java/org/jooq/impl/Expression.java b/jOOQ/src/main/java/org/jooq/impl/Expression.java
index 513b1fb456..3b64c272cb 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Expression.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Expression.java
@@ -790,6 +790,7 @@ implements
 
 
 
+                case DUCKDB:
                 case POSTGRES:
                 case YUGABYTEDB:
                 case TRINO: {