From 86ac598496084fb215ac14b93a922b0f38c4c5d9 Mon Sep 17 00:00:00 2001
From: Nicolas Guerrero <stephenguerrero43@gmail.com>
Date: Sun, 24 Jan 2021 18:38:45 -0500
Subject: [PATCH] Add xid support

---
 decode.ts           |  2 ++
 oid.ts              |  5 ++---
 tests/data_types.ts | 12 ++++++++++++
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/decode.ts b/decode.ts
index 39d3864f..2fd53dde 100644
--- a/decode.ts
+++ b/decode.ts
@@ -286,9 +286,11 @@ function decodeText(value: Uint8Array, typeOid: number): any {
       return parseArray(strValue, (x) => x[0] === "t");
     case Oid.int2:
     case Oid.int4:
+    case Oid.xid:
       return decodeBaseTenInt(strValue);
     case Oid.int2_array:
     case Oid.int4_array:
+    case Oid.xid_array:
       return decodeIntArray(strValue);
     case Oid.float4:
     case Oid.float8:
diff --git a/oid.ts b/oid.ts
index beaf81af..0a1f02d4 100644
--- a/oid.ts
+++ b/oid.ts
@@ -15,8 +15,7 @@ export const Oid = {
   oid: 26,
   // deno-lint-ignore camelcase
   _tid_0: 27,
-  // deno-lint-ignore camelcase
-  _xid_0: 28,
+  xid: 28,
   // deno-lint-ignore camelcase
   _cid_0: 29,
   // deno-lint-ignore camelcase
@@ -101,7 +100,7 @@ export const Oid = {
   // deno-lint-ignore camelcase
   _tid_1: 1010,
   // deno-lint-ignore camelcase
-  _xid_1: 1011,
+  xid_array: 1011,
   // deno-lint-ignore camelcase
   _cid_1: 1012,
   // deno-lint-ignore camelcase
diff --git a/tests/data_types.ts b/tests/data_types.ts
index 26d63d1f..f823a487 100644
--- a/tests/data_types.ts
+++ b/tests/data_types.ts
@@ -557,3 +557,15 @@ testClient(async function timetzArray() {
 
   assertEquals(result.rows[0][0][0].slice(0, 8), "01:01:01");
 });
+
+testClient(async function xid() {
+  const result = await CLIENT.query("SELECT '1'::xid");
+
+  assertEquals(result.rows[0][0], 1);
+});
+
+testClient(async function xidArray() {
+  const result = await CLIENT.query("SELECT ARRAY['12'::xid, '4789'::xid]");
+
+  assertEquals(result.rows[0][0], [12, 4789]);
+});