From 3d5ecd433389603aadb2b445b98e4f43f0d7fbf5 Mon Sep 17 00:00:00 2001
From: Marcin Wisnicki <mwisnicki@gmail.com>
Date: Mon, 13 Mar 2023 19:24:53 -0400
Subject: [PATCH] Add missing NEWSEQUENTIALID function in MSSQLServer mode.

Does not attempt to be sequential but that should be good enough.
---
 h2/src/main/org/h2/mode/FunctionsMSSQLServer.java           | 6 +++++-
 .../org/h2/test/scripts/functions/numeric/random-uuid.sql   | 6 ++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/h2/src/main/org/h2/mode/FunctionsMSSQLServer.java b/h2/src/main/org/h2/mode/FunctionsMSSQLServer.java
index 67d640de76..eaea218273 100644
--- a/h2/src/main/org/h2/mode/FunctionsMSSQLServer.java
+++ b/h2/src/main/org/h2/mode/FunctionsMSSQLServer.java
@@ -39,7 +39,9 @@ public final class FunctionsMSSQLServer extends ModeFunction {
 
     private static final int NEWID = LEN + 1;
 
-    private static final int SCOPE_IDENTITY = NEWID + 1;
+    private static final int NEWSEQUENTIALID = NEWID + 1;
+
+    private static final int SCOPE_IDENTITY = NEWSEQUENTIALID + 1;
 
     private static final TypeInfo SCOPE_IDENTITY_TYPE = TypeInfo.getTypeInfo(Value.NUMERIC, 38, 0, null);
 
@@ -48,6 +50,7 @@ public final class FunctionsMSSQLServer extends ModeFunction {
         FUNCTIONS.put("GETDATE", new FunctionInfo("GETDATE", GETDATE, 0, Value.TIMESTAMP, false, true));
         FUNCTIONS.put("LEN", new FunctionInfo("LEN", LEN, 1, Value.INTEGER, true, true));
         FUNCTIONS.put("NEWID", new FunctionInfo("NEWID", NEWID, 0, Value.UUID, true, false));
+        FUNCTIONS.put("NEWSEQUENTIALID", new FunctionInfo("NEWSEQUENTIALID", NEWSEQUENTIALID, 0, Value.UUID, true, false));
         FUNCTIONS.put("ISNULL", new FunctionInfo("ISNULL", ISNULL, 2, Value.NULL, false, true));
         FUNCTIONS.put("SCOPE_IDENTITY",
                 new FunctionInfo("SCOPE_IDENTITY", SCOPE_IDENTITY, 0, Value.NUMERIC, true, false));
@@ -127,6 +130,7 @@ public Expression optimize(SessionLocal session) {
         case ISNULL:
             return new CoalesceFunction(CoalesceFunction.COALESCE, args).optimize(session);
         case NEWID:
+        case NEWSEQUENTIALID:
             return new RandFunction(null, RandFunction.RANDOM_UUID).optimize(session);
         case SCOPE_IDENTITY:
             type = SCOPE_IDENTITY_TYPE;
diff --git a/h2/src/test/org/h2/test/scripts/functions/numeric/random-uuid.sql b/h2/src/test/org/h2/test/scripts/functions/numeric/random-uuid.sql
index afb1c231df..a5d33fac81 100644
--- a/h2/src/test/org/h2/test/scripts/functions/numeric/random-uuid.sql
+++ b/h2/src/test/org/h2/test/scripts/functions/numeric/random-uuid.sql
@@ -12,6 +12,9 @@ SELECT RANDOM_UUID() = RANDOM_UUID();
 SELECT NEWID();
 > exception FUNCTION_NOT_FOUND_1
 
+SELECT NEWSEQUENTIALID();
+> exception FUNCTION_NOT_FOUND_1
+
 SELECT SYS_GUID();
 > exception FUNCTION_NOT_FOUND_1
 
@@ -21,6 +24,9 @@ SET MODE MSSQLServer;
 SELECT CHAR_LENGTH(CAST(NEWID() AS VARCHAR));
 >> 36
 
+SELECT CHAR_LENGTH(CAST(NEWSEQUENTIALID() AS VARCHAR));
+>> 36
+
 SET MODE Oracle;
 > ok