Add debug logging to getInformationSchemaTable

trinodb · Oct 1, 2019 · 5582a32 · 5582a32
1 parent ffedc9a
commit 5582a32
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/...in/java/io/prestosql/connector/informationschema/InformationSchemaPageSourceProvider.java b/...in/java/io/prestosql/connector/informationschema/InformationSchemaPageSourceProvider.java
@@ -14,6 +14,7 @@
 package io.prestosql.connector.informationschema;
 
 import com.google.common.collect.ImmutableList;
+import io.airlift.log.Logger;
 import io.prestosql.FullConnectorSession;
 import io.prestosql.Session;
 import io.prestosql.metadata.InternalTable;
@@ -66,6 +67,8 @@
 public class InformationSchemaPageSourceProvider
         implements ConnectorPageSourceProvider
 {
+    private static final Logger log = Logger.get(InformationSchemaPageSourceProvider.class);
+
     private final Metadata metadata;
     private final AccessControl accessControl;
 
@@ -114,6 +117,8 @@ private InternalTable getInternalTable(ConnectorSession connectorSession, Connec
 
     public InternalTable getInformationSchemaTable(Session session, String catalog, InformationSchemaTable table, Set<QualifiedTablePrefix> prefixes, OptionalLong limit)
     {
+        log.debug("Building information schema table (queryId=%s; catalog=%s; table=%s; prefixes=%s, limit=%s)", session.getQueryId(), catalog, table, prefixes, limit);
+
         switch (table) {
             case COLUMNS:
                 return buildColumns(session, prefixes, limit);