From b5fd4e1b167731d6ca1b7285ee8f83a410441648 Mon Sep 17 00:00:00 2001
From: taozhi8833998 <taozhi8833998@163.com>
Date: Sun, 24 Dec 2023 21:39:30 +0800
Subject: [PATCH] fix: case when then expr with additive in pg

---
 pegjs/postgresql.pegjs |  4 ++--
 test/postgres.spec.js  | 11 +++++++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/pegjs/postgresql.pegjs b/pegjs/postgresql.pegjs
index 9a4adc2e..8c86224d 100644
--- a/pegjs/postgresql.pegjs
+++ b/pegjs/postgresql.pegjs
@@ -4501,10 +4501,10 @@ cast_expr
       }
     };
   }
-  / LPAREN __ e:(literal / aggr_func / window_func / func_call / case_expr / interval_expr / column_ref_array_index / param) __ RPAREN __ c:cast_double_colon?  {
+  / LPAREN __ e:(or_expr / column_ref_array_index / param) __ RPAREN __ c:cast_double_colon?  {
     /* => {
         type: 'cast';
-        expr: literal | aggr_func | func_call | case_expr | interval_expr | column_ref | param
+        expr: or_expr | column_ref | param
           | expr;
         keyword: 'cast';
         ...cast_double_colon;
diff --git a/test/postgres.spec.js b/test/postgres.spec.js
index f5bd4d6a..629c6ab4 100644
--- a/test/postgres.spec.js
+++ b/test/postgres.spec.js
@@ -1593,6 +1593,17 @@ describe('Postgres', () => {
           `SELECT * FROM "test" WHERE "théâtre" = 'Molière'`
         ]
       },
+      {
+        title: 'cast when expr is additive_ expr',
+        sql: [
+          `SELECT
+            CASE
+                WHEN updated IS NOT NULL THEN (updated - created)::TIME
+            END AS some_time
+          FROM some_table`,
+          'SELECT CASE WHEN "updated" IS NOT NULL THEN ("updated" - "created")::TIME END AS "some_time" FROM "some_table"'
+        ]
+      },
     ]
     neatlyNestTestedSQL(SQL_LIST)
   })