Database: Avoid internal use of ignoreErrors()

* Use $tempIgnore in DatabaseBase::tableExists() instead of ignoreErrors().
* DatabasePostgres::reportQueryError(), since 419221e4a71b, calls
  ignoreErrors() before and after rollback(). This is probably not effective
  as a recursion guard (reportQueryError() would be called regardless), and
  for suppressing any log entry or exception, it is redundant (doRollback()
  already sets $tempIgnore when calling query()).
* ignoreErrors(), now unused, can be removed in a separate change set.

Change-Id: Iee768abf996ece213146ab8f64a15a2b407a2e5e

2 files changed, 2 insertions, 5 deletions

diff --git a/includes/libs/rdbms/database/Database.php b/includes/libs/rdbms/database/Database.php
index b9beac8662ec..69cf1ac356bf 100644
--- a/includes/libs/rdbms/database/Database.php
+++ b/includes/libs/rdbms/database/Database.php
@@ -1419,9 +1419,8 @@ abstract class Database implements IDatabase, IMaintainableDatabase, LoggerAware
 		}
 
 		$table = $this->tableName( $table );
-		$old = $this->ignoreErrors( true );
-		$res = $this->query( "SELECT 1 FROM $table LIMIT 1", $fname );
-		$this->ignoreErrors( $old );
+		$ignoreErrors = true;
+		$res = $this->query( "SELECT 1 FROM $table LIMIT 1", $fname, $ignoreErrors );
 
 		return (bool)$res;
 	}
diff --git a/includes/libs/rdbms/database/DatabasePostgres.php b/includes/libs/rdbms/database/DatabasePostgres.php
index cd0217766e83..42113b0851c9 100644
--- a/includes/libs/rdbms/database/DatabasePostgres.php
+++ b/includes/libs/rdbms/database/DatabasePostgres.php
@@ -243,9 +243,7 @@ class DatabasePostgres extends Database {
 		}
 		/* Transaction stays in the ERROR state until rolled back */
 		if ( $this->mTrxLevel ) {
-			$ignore = $this->ignoreErrors( true );
 			$this->rollback( __METHOD__ );
-			$this->ignoreErrors( $ignore );
 		}
 		parent::reportQueryError( $error, $errno, $sql, $fname, false );
 	}