diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 3d0412630e..5c44f37e8a 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -1757,7 +1757,10 @@ function is_blog_installed() {
 		}
 
 		$described_table = $wpdb->get_results( "DESCRIBE $table;" );
-		if ( is_array( $described_table ) && count( $described_table ) === 0 ) {
+		if (
+			( ! $described_table && empty( $wpdb->last_error ) ) ||
+			( is_array( $described_table ) && 0 === count( $described_table ) )
+		) {
 			continue;
 		}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 929e49b59c..971e33d1bd 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-beta2-49451';
+$wp_version = '5.6-beta2-49452';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.