From eedf5f228f57e2c9ee723e386c0bacd1066108df Mon Sep 17 00:00:00 2001
From: Alexander Zaytsev <hazzik@gmail.com>
Date: Fri, 7 Apr 2017 10:37:34 +1200
Subject: [PATCH 1/2] NH-3921 - Sequence support for Ingres9

---
 src/NHibernate/Dialect/Ingres9Dialect.cs | 31 +++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/src/NHibernate/Dialect/Ingres9Dialect.cs b/src/NHibernate/Dialect/Ingres9Dialect.cs
index 9853388c625..b9de862e8fb 100644
--- a/src/NHibernate/Dialect/Ingres9Dialect.cs
+++ b/src/NHibernate/Dialect/Ingres9Dialect.cs
@@ -30,7 +30,12 @@ public override bool SupportsLimitOffset
 		{
 			get { return true; }
 		}
-		
+
+		/// <summary>
+		/// Does this dialect support sequences?
+		/// </summary>
+		public override bool SupportsSequences => true;
+
 		/// <summary>
 		/// Attempts to add a <c>LIMIT</c> clause to the given SQL <c>SELECT</c>.
 		/// Expects any database-specific offset and limit adjustments to have already been performed (ex. UseMaxForLimit, OffsetStartsAtOne).
@@ -65,10 +70,30 @@ public override SqlString GetLimitString(SqlString queryString, SqlString offset
 			return pagingBuilder.ToSqlString();
 		}
 
+		public override string GetSequenceNextValString(string sequenceName)
+		{
+			return "select " + GetSelectSequenceNextValString(sequenceName) + " as seq";
+		}
+
+		public override string GetSelectSequenceNextValString(string sequenceName)
+		{
+			return "next value for " + sequenceName;
+		}
+
+		public override string GetCreateSequenceString(string sequenceName)
+		{
+			return "create sequence " + sequenceName;
+		}
+
+		public override string GetDropSequenceString(string sequenceName)
+		{
+			return "drop sequence " + sequenceName;
+		}
+
 		#region Overridden informational metadata
-		
+
 		public override bool DoesRepeatableReadCauseReadersToBlockWriters => true;
 
 		#endregion
 	}
-}
\ No newline at end of file
+}

From 98231b97487e18d119700412548eb0946759090a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Delaporte?= <fredericdelaporte@free.fr>
Date: Mon, 8 Jan 2018 16:21:41 +0100
Subject: [PATCH 2/2] Proposed changes as per review, to be squashed.

---
 src/NHibernate/Dialect/Ingres9Dialect.cs | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/NHibernate/Dialect/Ingres9Dialect.cs b/src/NHibernate/Dialect/Ingres9Dialect.cs
index b9de862e8fb..1d7f9761b63 100644
--- a/src/NHibernate/Dialect/Ingres9Dialect.cs
+++ b/src/NHibernate/Dialect/Ingres9Dialect.cs
@@ -31,11 +31,15 @@ public override bool SupportsLimitOffset
 			get { return true; }
 		}
 
-		/// <summary>
-		/// Does this dialect support sequences?
-		/// </summary>
+		/// <inheritdoc />
 		public override bool SupportsSequences => true;
 
+		/// <inheritdoc />
+		public override bool SupportsPooledSequences => true;
+
+		/// <inheritdoc />
+		public override string QuerySequencesString => "select seq_name from iisequences";
+
 		/// <summary>
 		/// Attempts to add a <c>LIMIT</c> clause to the given SQL <c>SELECT</c>.
 		/// Expects any database-specific offset and limit adjustments to have already been performed (ex. UseMaxForLimit, OffsetStartsAtOne).
@@ -70,21 +74,25 @@ public override SqlString GetLimitString(SqlString queryString, SqlString offset
 			return pagingBuilder.ToSqlString();
 		}
 
+		/// <inheritdoc />
 		public override string GetSequenceNextValString(string sequenceName)
 		{
 			return "select " + GetSelectSequenceNextValString(sequenceName) + " as seq";
 		}
 
+		/// <inheritdoc />
 		public override string GetSelectSequenceNextValString(string sequenceName)
 		{
 			return "next value for " + sequenceName;
 		}
 
+		/// <inheritdoc />
 		public override string GetCreateSequenceString(string sequenceName)
 		{
 			return "create sequence " + sequenceName;
 		}
 
+		/// <inheritdoc />
 		public override string GetDropSequenceString(string sequenceName)
 		{
 			return "drop sequence " + sequenceName;