From 116827060fbad22951f553a31c9a0e540479b199 Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Mon, 3 Mar 2025 15:50:08 +0100
Subject: [PATCH] PostgreSQL, MS SQL, Oracle: Hide table actions for
 information_schema

---
 adminer/drivers/mssql.inc.php  | 2 +-
 adminer/drivers/oracle.inc.php | 2 +-
 adminer/drivers/pgsql.inc.php  | 2 +-
 adminer/foreign.inc.php        | 5 ++++-
 changes.txt                    | 1 +
 5 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/adminer/drivers/mssql.inc.php b/adminer/drivers/mssql.inc.php
index 52b3dd15..1d5dbcde 100644
--- a/adminer/drivers/mssql.inc.php
+++ b/adminer/drivers/mssql.inc.php
@@ -392,7 +392,7 @@ WHERE OBJECT_NAME(i.object_id) = " . q($table)
 	}
 
 	function information_schema($db) {
-		return false;
+		return get_schema() == "INFORMATION_SCHEMA";
 	}
 
 	function error() {
diff --git a/adminer/drivers/oracle.inc.php b/adminer/drivers/oracle.inc.php
index 65cb4894..f25c551c 100644
--- a/adminer/drivers/oracle.inc.php
+++ b/adminer/drivers/oracle.inc.php
@@ -346,7 +346,7 @@ ORDER BY ac.constraint_type, aic.column_position", $connection2) as $row) {
 	}
 
 	function information_schema($db) {
-		return false;
+		return get_schema() == "INFORMATION_SCHEMA";
 	}
 
 	function error() {
diff --git a/adminer/drivers/pgsql.inc.php b/adminer/drivers/pgsql.inc.php
index 7328a603..0d05854e 100644
--- a/adminer/drivers/pgsql.inc.php
+++ b/adminer/drivers/pgsql.inc.php
@@ -471,7 +471,7 @@ ORDER BY conkey, conname") as $row) {
 	}
 
 	function information_schema($db) {
-		return ($db == "information_schema");
+		return get_schema() == "information_schema";
 	}
 
 	function error() {
diff --git a/adminer/foreign.inc.php b/adminer/foreign.inc.php
index 99caf5cb..7da2d551 100644
--- a/adminer/foreign.inc.php
+++ b/adminer/foreign.inc.php
@@ -64,7 +64,10 @@ $target = array_keys(fields(in_array($row["table"], $referencable) ? $row["table
 $onchange = "this.form['change-js'].value = '1'; this.form.submit();";
 echo "<p>" . lang('Target table') . ": " . html_select("table", $referencable, $row["table"], $onchange) . "\n";
 if (support("scheme")) {
-	echo lang('Schema') . ": " . html_select("ns", $adminer->schemas(), $row["ns"] != "" ? $row["ns"] : $_GET["ns"], $onchange);
+	$schemas = array_filter($adminer->schemas(), function ($schema) {
+		return !preg_match('~^information_schema$~i', $schema);
+	});
+	echo lang('Schema') . ": " . html_select("ns", $schemas, $row["ns"] != "" ? $row["ns"] : $_GET["ns"], $onchange);
 	if ($row["ns"] != "") {
 		set_schema($orig_schema);
 	}
diff --git a/changes.txt b/changes.txt
index e3c66f57..0f693f8d 100644
--- a/changes.txt
+++ b/changes.txt
@@ -6,6 +6,7 @@ PostgreSQL: Fix export of indexes with expressions (bug #768)
 PostgreSQL: Display ENUM types
 PostgreSQL: Export ENUM types (bug #587)
 PostgreSQL: Show accessible databases to non-owners (regression from 4.9.1)
+PostgreSQL, MS SQL, Oracle: Hide table actions for information_schema
 SQLite: Support CHECK constraint
 SQLite: Add command Check tables
 SQLite: Display all rows of variable values