Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/99#discussion_r78439950
--- Diff: relational_operators/TextScanOperator.cpp ---
@@ -91,6 +96,14 @@ bool TextScanOperator::getAllWorkOrders(
if (blocking_dependencies_met_ && !work_generated_) {
for (const std::string &file : files) {
// Use standard C libary to retrieve the file size.
+
+#ifdef QUICKSTEP_HAVE_UNISTD
+ // Check file permissions before trying to open it.
+ const int access_result = access(file.c_str(), R_OK);
+ CHECK_EQ(0, access_result)
+ << "File " << file << " is not readable due to permission
issues.";
--- End diff --
Please remove one of two whitespaces before `file`.
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