diff --git a/lib/private/DB/Connection.php b/lib/private/DB/Connection.php
index cae50da1455f2..fe6131dc5060e 100644
--- a/lib/private/DB/Connection.php
+++ b/lib/private/DB/Connection.php
@@ -263,12 +263,12 @@ public function executeQuery(string $sql, array $params = [], $types = [], Query
 		if (count(array_intersect($this->tableDirtyWrites, $tables)) === 0 && !$this->isTransactionActive()) {
 			// No tables read that could have been written already in the same request and no transaction active
 			// so we can switch back to the replica for reading as long as no writes happen that switch back to the primary
-			$this->ensureConnectedToReplica();
-			$this->logger->debug('no dirty table reads: ' . $sql, ['tables' => $this->tableDirtyWrites, 'reads' => $tables]);
+			// $this->ensureConnectedToReplica();
+			$this->logger->error('no dirty table reads: ' . $sql, ['tables' => $this->tableDirtyWrites, 'reads' => $tables]);
 		} else {
 			// Read to a table that was previously written to
 			// While this might not necessarily mean that we did a read after write it is an indication for a code path to check
-			$this->logger->debug('dirty table reads: ' . $sql, ['tables' => $this->tableDirtyWrites, 'reads' => $tables, 'exception' => new \Exception()]);
+			$this->logger->error('dirty table reads: ' . $sql, ['tables' => $this->tableDirtyWrites, 'reads' => $tables, 'exception' => new \Exception()]);
 		}
 
 		$sql = $this->replaceTablePrefix($sql);
@@ -283,7 +283,7 @@ public function executeQuery(string $sql, array $params = [], $types = [], Query
 	 * used to track dirty tables that received a write with the current request
 	 */
 	private function getQueriedTables(string $sql): array {
-		$re = '/(\*PREFIX\*[A-z0-9_-]+)/mi';
+		$re = '/(\*PREFIX\*\w+)/mi';
 		preg_match_all($re, $sql, $matches);
 		return array_map([$this, 'replaceTablePrefix'], $matches[0] ?? []);
 	}
@@ -316,7 +316,7 @@ public function executeUpdate(string $sql, array $params = [], array $types = []
 	public function executeStatement($sql, array $params = [], array $types = []): int {
 		$tables = $this->getQueriedTables($sql);
 		$this->tableDirtyWrites = array_unique(array_merge($this->tableDirtyWrites, $tables));
-		$this->logger->debug('dirty table writes: ' . $sql, ['tables' => $this->tableDirtyWrites]);
+		$this->logger->error('dirty table writes: ' . $sql, ['tables' => $this->tableDirtyWrites]);
 		$sql = $this->replaceTablePrefix($sql);
 		$sql = $this->adapter->fixupStatement($sql);
 		$this->queriesExecuted++;
@@ -644,7 +644,7 @@ protected function performConnect(?string $connectionName = null): bool {
 		$result = parent::performConnect($connectionName);
 		$after = $this->isConnectedToPrimary();
 		if (!$before && $after) {
-			$this->logger->debug('Switched to primary database', ['exception' => new \Exception()]);
+			$this->logger->error('Switched to primary database', ['exception' => new \Exception()]);
 		}
 		return $result;
 	}