fix: add LIKE only when table_name != NULL

ClickHouse · Aug 18, 2017 · 15c71db · 15c71db
1 parent 52a6a50
commit 15c71db
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/driver/odbc.cpp b/driver/odbc.cpp
@@ -684,11 +684,11 @@ SQLTables(HSTMT statement_handle,
                 " FROM system.tables"
                 " WHERE (1 == 1)";
 
-            if (catalog_name_length)
+            if (catalog_name && catalog_name_length)
                 query << " AND TABLE_CAT LIKE '" << stringFromSQLChar(catalog_name, catalog_name_length) << "'";
             //if (schema_name_length)
             //    query << " AND TABLE_SCHEM LIKE '" << stringFromSQLChar(schema_name, schema_name_length) << "'";
-            if (table_name_length)
+            if (table_name && table_name_length)
                 query << " AND TABLE_NAME LIKE '" << stringFromSQLChar(table_name, table_name_length) << "'";
             //if (table_type_length)
             //    query << " AND TABLE_TYPE = '" << stringFromSQLChar(table_type, table_type_length) << "'";