From 49fd96f8b999a9ac35c46931fa468a3619d06b8f Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Tue, 15 Apr 2025 08:57:06 +0200
Subject: [PATCH] PostgreSQL: Display partition info (bug #1031)

---
 adminer/drivers/pgsql.inc.php | 22 ++++++++++++++++------
 adminer/lang/cs.inc.php       |  1 -
 adminer/lang/pl.inc.php       |  1 -
 adminer/lang/xx.inc.php       |  1 -
 adminer/table.inc.php         |  6 +++++-
 5 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/adminer/drivers/pgsql.inc.php b/adminer/drivers/pgsql.inc.php
index eddd4b87..dcdce6df 100644
--- a/adminer/drivers/pgsql.inc.php
+++ b/adminer/drivers/pgsql.inc.php
@@ -338,6 +338,19 @@ if (isset($_GET["pgsql"])) {
 			return get_vals("SELECT relname FROM pg_inherits JOIN pg_class ON inhrelid = oid WHERE inhparent = " . $this->tableOid($table) . " ORDER BY 1");
 		}
 
+		function partitionsInfo(string $table): array {
+			$row = connection()->query("SELECT * FROM pg_partitioned_table WHERE partrelid = " . driver()->tableOid($table))->fetch_assoc();
+			if ($row) {
+				$attrs = get_vals("SELECT attname FROM pg_attribute WHERE attrelid = $row[partrelid] AND attnum IN (" . str_replace(" ", ", ", $row["partattrs"]) . ")"); //! ordering
+				$by = array('h' => 'HASH', 'l' => 'LIST', 'r' => 'RANGE');
+				return array(
+					"partition_by" => $by[$row["partstrat"]],
+					"partition" => implode(", ", array_map('Adminer\idf_escape', $attrs)),
+				);
+			}
+			return array();
+		}
+
 		function tableOid(string $table): string {
 			return "(SELECT oid FROM pg_class WHERE relnamespace = $this->nsOid AND relname = " . q($table) . " AND relkind IN ('r', 'm', 'v', 'f', 'p'))";
 		}
@@ -943,12 +956,9 @@ AND typelem = 0"
 		}
 		$return .= implode(",\n    ", $return_parts) . "\n)";
 
-		$table_oid = driver()->tableOid($status['Name']);
-		$row = connection()->query("SELECT * FROM pg_partitioned_table WHERE partrelid = $table_oid")->fetch_assoc();
-		if ($row) {
-			$attrs = get_vals("SELECT attname FROM pg_attribute WHERE attrelid = $row[partrelid] AND attnum IN (" . str_replace(" ", ", ", $row["partattrs"]) . ")"); //! ordering
-			$by = array('h' => 'HASH', 'l' => 'LIST', 'r' => 'RANGE');
-			$return .= "\nPARTITION BY $by[partstrat](" . implode(", ", array_map('Adminer\idf_escape', $attrs)) . ")";
+		$partition = driver()->partitionsInfo($status['Name']);
+		if ($partition) {
+			$return .= "\nPARTITION BY $partition[partition_by]($partition[partition])";
 		}
 		//! parse pg_class.relpartbound to create PARTITION OF
 
diff --git a/adminer/lang/cs.inc.php b/adminer/lang/cs.inc.php
index a950a36e..1a96c67d 100644
--- a/adminer/lang/cs.inc.php
+++ b/adminer/lang/cs.inc.php
@@ -195,7 +195,6 @@ Lang::$translations = array(
 	'Partition name' => 'Název oddílu',
 	'Values' => 'Hodnoty',
 	'Inherits from' => 'Zděděná z',
-	'Inherited tables' => 'Zděděné tabulky',
 
 	'View' => 'Pohled',
 	'Materialized view' => 'Materializovaný pohled',
diff --git a/adminer/lang/pl.inc.php b/adminer/lang/pl.inc.php
index 78da24c9..d00f1c02 100644
--- a/adminer/lang/pl.inc.php
+++ b/adminer/lang/pl.inc.php
@@ -196,7 +196,6 @@ Lang::$translations = array(
 	'Partition name' => 'Nazwa partycji',
 	'Values' => 'Wartości',
 	'Inherits from' => 'Dziedziczy po',
-	'Inherited tables' => 'Tabele dziedziczone',
 
 	'View' => 'Perspektywa',
 	'Materialized view' => 'Zmaterializowana perspektywa',
diff --git a/adminer/lang/xx.inc.php b/adminer/lang/xx.inc.php
index 34dfdbb7..283be7e5 100644
--- a/adminer/lang/xx.inc.php
+++ b/adminer/lang/xx.inc.php
@@ -197,7 +197,6 @@ Lang::$translations = array(
 	'Partition name' => 'Xx',
 	'Values' => 'Xx',
 	'Inherits from' => 'Xx',
-	'Inherited tables' => 'Xx',
 
 	'View' => 'Xx',
 	'Materialized view' => 'Xx',
diff --git a/adminer/table.inc.php b/adminer/table.inc.php
index 85067d45..a9846d37 100644
--- a/adminer/table.inc.php
+++ b/adminer/table.inc.php
@@ -110,6 +110,10 @@ if (support(is_view($table_status) ? "view_trigger" : "trigger")) {
 
 $inherited = driver()->inheritedTables($TABLE);
 if ($inherited) {
-	echo "<h3 id='inherited'>" . lang('Inherited tables') . "</h3>\n";
+	echo "<h3 id='partitions'>" . lang('Partitions') . "</h3>\n";
+	$partition = driver()->partitionsInfo($TABLE);
+	if ($partition) {
+		echo "<p><code class='jush-" . JUSH . "'>BY " . h("$partition[partition_by]($partition[partition])") . "</code>\n";
+	}
 	tables_links($inherited);
 }