From 67b56820128cf9de5d7be862f0cb2d791b065e10 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Tue, 9 Jun 2020 09:48:39 +0200
Subject: [PATCH] [jOOQ/jOOQ#10256] HSQLDB cannot handle negative DAY intervals
 when using expression syntax

---
 jOOQ/src/main/java/org/jooq/impl/Expression.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/Expression.java b/jOOQ/src/main/java/org/jooq/impl/Expression.java
index 027504fa56..297c60e55b 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Expression.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Expression.java
@@ -657,9 +657,9 @@ final class Expression<T> extends AbstractField<T> {
 
                 case HSQLDB: {
                     if (operator == ADD)
-                        ctx.visit(lhs.add(DSL.field("{0} day", rhsAsNumber())));
+                        ctx.visit(lhs.add(DSL.field("({0}) day", rhsAsNumber())));
                     else
-                        ctx.visit(lhs.sub(DSL.field("{0} day", rhsAsNumber())));
+                        ctx.visit(lhs.sub(DSL.field("({0}) day", rhsAsNumber())));
 
                     break;
                 }