[jOOQ/jOOQ#16071] Support MIN_BY() and MAX_BY() in HANA

They're just FIRST_VALUE() and LAST_VALUE(), really...

jOOQ/src/main/java/org/jooq/impl/AbstractAggregateFunction.java

@@ -355,7 +355,11 @@ implements
     }
 
     final void acceptOrderBy(Context<?> ctx) {
-        if (!Tools.isEmpty(withinGroupOrderBy)) {
+        acceptOrderBy(ctx, withinGroupOrderBy);
+    }
+
+    static final void acceptOrderBy(Context<?> ctx, SortFieldList orderBy) {
+        if (!Tools.isEmpty(orderBy)) {
             switch (ctx.family()) {
 
 
@@ -364,7 +368,7 @@ implements
 
 
                 default:
-                    ctx.sql(' ').visit(K_ORDER_BY).sql(' ').visit(withinGroupOrderBy);
+                    ctx.sql(' ').visit(K_ORDER_BY).sql(' ').visit(orderBy);
                     break;
             }
         }

jOOQ/src/main/java/org/jooq/impl/MaxBy.java

@@ -115,6 +115,27 @@ implements
 
 
 
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             case H2:
             case HSQLDB:
             case POSTGRES:
@@ -149,6 +170,12 @@ implements
                 ctx.visit(N_argMax);
                 break;
 
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             default:
                 super.acceptFunctionName(ctx);
                 break;

jOOQ/src/main/java/org/jooq/impl/MinBy.java

@@ -115,6 +115,27 @@ implements
 
 
 
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             case H2:
             case HSQLDB:
             case POSTGRES:
@@ -149,6 +170,12 @@ implements
                 ctx.visit(N_argMin);
                 break;
 
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             default:
                 super.acceptFunctionName(ctx);
                 break;