Fix FROM/IN handling for SHOW statements

Author: JanJakes

tests/WP_SQLite_Driver_Tests.php

@@ -691,7 +691,7 @@ public function testShowTableStatusFrom() {
 		);
 
 		$this->assertQuery(
-			'SHOW TABLE STATUS FROM mydb;'
+			'SHOW TABLE STATUS FROM wp;'
 		);
 
 		$this->assertCount(
@@ -714,7 +714,7 @@ public function testShowTableStatusIn() {
 		);
 
 		$this->assertQuery(
-			'SHOW TABLE STATUS IN mydb;'
+			'SHOW TABLE STATUS IN wp;'
 		);
 
 		$this->assertCount(
@@ -744,7 +744,7 @@ public function testShowTableStatusInTwoTables() {
 			);"
 		);
 		$this->assertQuery(
-			'SHOW TABLE STATUS IN mydb;'
+			'SHOW TABLE STATUS IN wp;'
 		);
 
 		$this->assertCount(

wp-includes/sqlite-ast/class-wp-sqlite-driver.php

@@ -1273,8 +1273,14 @@ private function execute_show_index_statement( string $table_name ): void {
 
 	private function execute_show_table_status_statement( WP_Parser_Node $node ): void {
 		// FROM/IN database.
-		$in_db    = $node->get_first_child_node( 'idDb' );
-		$database = null === $in_db ? $this->db_name : $this->translate( $in_db );
+		$in_db = $node->get_first_child_node( 'inDb' );
+		if ( null === $in_db ) {
+			$database = $this->db_name;
+		} else {
+			$database = $this->unquote_sqlite_identifier(
+				$this->translate( $in_db->get_first_child_node( 'identifier' ) )
+			);
+		}
 
 		// LIKE and WHERE clauses.
 		$like_or_where = $node->get_first_child_node( 'likeOrWhere' );
@@ -1325,8 +1331,14 @@ private function execute_show_table_status_statement( WP_Parser_Node $node ): vo
 
 	private function execute_show_tables_statement( WP_Parser_Node $node ): void {
 		// FROM/IN database.
-		$in_db    = $node->get_first_child_node( 'idDb' );
-		$database = null === $in_db ? $this->db_name : $this->translate( $in_db );
+		$in_db = $node->get_first_child_node( 'inDb' );
+		if ( null === $in_db ) {
+			$database = $this->db_name;
+		} else {
+			$database = $this->unquote_sqlite_identifier(
+				$this->translate( $in_db->get_first_child_node( 'identifier' ) )
+			);
+		}
 
 		// LIKE and WHERE clauses.
 		$like_or_where = $node->get_first_child_node( 'likeOrWhere' );