add hiding secrets in EXPLAIN for table functions

src/Analyzer/ConstantNode.cpp

@@ -114,7 +114,12 @@ void ConstantNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state
 
     buffer << ", constant_value: ";
     if (mask_id)
+    {
+        if (mask_id == std::numeric_limits<decltype(mask_id)>::max())
+            buffer << "[HIDDEN]";
+        else
             buffer << "[HIDDEN id: " << mask_id << "]";
+    }
     else
         buffer << constant_value->getValue().dump();
 

src/Analyzer/ConstantNode.h

@@ -82,7 +82,7 @@ public:
     /// Check if constant is a result of _CAST function constant folding.
     bool receivedFromInitiatorServer() const;
 
-    void setMaskId(size_t id)
+    void setMaskId(size_t id = std::numeric_limits<decltype(mask_id)>::max())
     {
         mask_id = id;
     }

src/Analyzer/FunctionSecretArgumentsFinderTreeNode.h

@@ -3,31 +3,48 @@
 #include <Parsers/FunctionSecretArgumentsFinder.h>
 #include <Analyzer/ConstantNode.h>
 #include <Analyzer/FunctionNode.h>
+#include <Analyzer/TableFunctionNode.h>
 #include <Analyzer/IdentifierNode.h>
 
 
-namespace DB
+namespace
 {
 
-class FunctionTreeNode : public AbstractFunction
+template <typename FunctionNodeType>
+String getFunctionNameImpl(const FunctionNodeType *);
+
+template <>
+[[maybe_unused]] String getFunctionNameImpl<DB::FunctionNode>(const DB::FunctionNode * function)
+{
+    return function->getFunctionName();
+}
+
+template <>
+[[maybe_unused]] String getFunctionNameImpl<DB::TableFunctionNode>(const DB::TableFunctionNode * function)
+{
+    return function->getTableFunctionName();
+}
+
+template <typename FunctionNodeType>
+class FunctionTreeNodeImpl : public DB::AbstractFunction
 {
 public:
     class ArgumentTreeNode : public Argument
     {
     public:
-        explicit ArgumentTreeNode(const IQueryTreeNode * argument_) : argument(argument_) {}
+        explicit ArgumentTreeNode(const DB::IQueryTreeNode * argument_) : argument(argument_) {}
         std::unique_ptr<AbstractFunction> getFunction() const override
         {
-            if (const auto * f = argument->as<FunctionNode>())
+            if (const auto * f = argument->as<FunctionNodeType>())
-                return std::make_unique<FunctionTreeNode>(*f);
+                return std::make_unique<FunctionTreeNodeImpl>(*f);
             return nullptr;
         }
-        bool isIdentifier() const override { return argument->as<IdentifierNode>(); }
+        bool isIdentifier() const override { return argument->as<DB::IdentifierNode>(); }
         bool tryGetString(String * res, bool allow_identifier) const override
         {
-            if (const auto * literal = argument->as<ConstantNode>())
+            if (const auto * literal = argument->as<DB::ConstantNode>())
             {
-                if (literal->getValue().getType() != Field::Types::String)
+                if (literal->getValue().getType() != DB::Field::Types::String)
                     return false;
                 if (res)
                     *res = literal->getValue().safeGet<String>();
@@ -36,7 +53,7 @@ public:
 
             if (allow_identifier)
             {
-                if (const auto * id = argument->as<IdentifierNode>())
+                if (const auto * id = argument->as<DB::IdentifierNode>())
                 {
                     if (res)
                         *res = id->getIdentifier().getFullName();
@@ -47,37 +64,37 @@ public:
             return false;
         }
     private:
-        const IQueryTreeNode * argument = nullptr;
+        const DB::IQueryTreeNode * argument = nullptr;
     };
 
     class ArgumentsTreeNode : public Arguments
     {
     public:
-        explicit ArgumentsTreeNode(const QueryTreeNodes * arguments_) : arguments(arguments_) {}
+        explicit ArgumentsTreeNode(const DB::QueryTreeNodes * arguments_) : arguments(arguments_) {}
         size_t size() const override { return arguments ? arguments->size() : 0; }
         std::unique_ptr<Argument> at(size_t n) const override { return std::make_unique<ArgumentTreeNode>(arguments->at(n).get()); }
     private:
-        const QueryTreeNodes * arguments = nullptr;
+        const DB::QueryTreeNodes * arguments = nullptr;
     };
 
-    explicit FunctionTreeNode(const FunctionNode & function_) : function(&function_)
+    explicit FunctionTreeNodeImpl(const FunctionNodeType & function_) : function(&function_)
     {
         if (const auto & nodes = function->getArguments().getNodes(); !nodes.empty())
             arguments = std::make_unique<ArgumentsTreeNode>(&nodes);
     }
-    String name() const override { return function->getFunctionName(); }
+    String name() const override { return getFunctionNameImpl(function); }
 private:
-    const FunctionNode * function = nullptr;
+    const FunctionNodeType * function = nullptr;
 };
 
-
 /// Finds arguments of a specified function which should not be displayed for most users for security reasons.
 /// That involves passwords and secret keys.
-class FunctionSecretArgumentsFinderTreeNode : public FunctionSecretArgumentsFinder
+template <typename FunctionNodeType>
+class FunctionSecretArgumentsFinderTreeNodeImpl : public DB::FunctionSecretArgumentsFinder
 {
 public:
-    explicit FunctionSecretArgumentsFinderTreeNode(const FunctionNode & function_)
+    explicit FunctionSecretArgumentsFinderTreeNodeImpl(const FunctionNodeType & function_)
-        : FunctionSecretArgumentsFinder(std::make_unique<FunctionTreeNode>(function_))
+        : FunctionSecretArgumentsFinder(std::make_unique<FunctionTreeNodeImpl<FunctionNodeType>>(function_))
     {
         if (!function->hasArguments())
             return;
@@ -89,3 +106,12 @@ public:
 };
 
 }
+
+
+namespace DB
+{
+
+using FunctionSecretArgumentsFinderTreeNode = FunctionSecretArgumentsFinderTreeNodeImpl<FunctionNode>;
+using TableFunctionSecretArgumentsFinderTreeNode = FunctionSecretArgumentsFinderTreeNodeImpl<TableFunctionNode>;
+
+}

src/Interpreters/InterpreterExplainQuery.cpp

@@ -1,3 +1,4 @@
+#include "Analyzer/FunctionNode.h"
 #include <Interpreters/InterpreterFactory.h>
 #include <Interpreters/InterpreterExplainQuery.h>
 
@@ -21,6 +22,7 @@
 #include <Parsers/ASTSelectQuery.h>
 #include <Parsers/ASTSelectWithUnionQuery.h>
 #include <Parsers/ASTSetQuery.h>
+#include <Parsers/FunctionSecretArgumentsFinder.h>
 
 #include <Storages/StorageView.h>
 #include <Processors/QueryPlan/QueryPlan.h>
@@ -33,6 +35,9 @@
 
 #include <Analyzer/QueryTreeBuilder.h>
 #include <Analyzer/QueryTreePassManager.h>
+#include <Analyzer/InDepthQueryTreeVisitor.h>
+#include <Analyzer/FunctionSecretArgumentsFinderTreeNode.h>
+
 
 namespace DB
 {
@@ -40,6 +45,7 @@ namespace Setting
 {
     extern const SettingsBool allow_experimental_analyzer;
     extern const SettingsBool allow_statistics_optimize;
+    extern const SettingsBool format_display_secrets_in_show_and_select;
 }
 
 namespace ErrorCodes
@@ -90,6 +96,32 @@ namespace
 
     using ExplainAnalyzedSyntaxVisitor = InDepthNodeVisitor<ExplainAnalyzedSyntaxMatcher, true>;
 
+    class TableFunctionSecretsVisitor : public InDepthQueryTreeVisitor<TableFunctionSecretsVisitor>
+    {
+        friend class InDepthQueryTreeVisitor;
+        bool needChildVisit(VisitQueryTreeNodeType & parent [[maybe_unused]], VisitQueryTreeNodeType & child [[maybe_unused]])
+        {
+            QueryTreeNodeType type = parent->getNodeType();
+            return type == QueryTreeNodeType::QUERY || type == QueryTreeNodeType::JOIN || type == QueryTreeNodeType::TABLE_FUNCTION;
+        }
+
+        void visitImpl(VisitQueryTreeNodeType & query_tree_node)
+        {
+            auto * table_function_node_ptr = query_tree_node->as<TableFunctionNode>();
+            if (!table_function_node_ptr)
+                return;
+
+            if (FunctionSecretArgumentsFinder::Result secret_arguments = TableFunctionSecretArgumentsFinderTreeNode(*table_function_node_ptr).getResult(); secret_arguments.count)
+            {
+                auto & argument_nodes = table_function_node_ptr->getArgumentsNode()->as<ListNode &>().getNodes();
+
+                for (size_t n = secret_arguments.start; n < secret_arguments.start + secret_arguments.count; ++n)
+                    if (auto * constant = argument_nodes[n]->as<ConstantNode>())
+                        constant->setMaskId();
+            }
+        }
+    };
+
 }
 
 BlockIO InterpreterExplainQuery::execute()
@@ -411,6 +443,12 @@ QueryPipeline InterpreterExplainQuery::executeImpl()
             auto query_tree = buildQueryTree(ast.getExplainedQuery(), getContext());
             bool need_newline = false;
 
+            if (!getContext()->getSettingsRef()[Setting::format_display_secrets_in_show_and_select])
+            {
+                TableFunctionSecretsVisitor visitor;
+                visitor.visit(query_tree);
+            }
+
             if (settings.run_passes)
             {
                 auto query_tree_pass_manager = QueryTreePassManager(getContext());
@@ -441,7 +479,10 @@ QueryPipeline InterpreterExplainQuery::executeImpl()
                 if (need_newline)
                     buf << "\n\n";
 
-                query_tree->toAST()->format(IAST::FormatSettings(buf, false));
+                IAST::FormatSettings format_settings(buf, false);
+                if (!getContext()->getSettingsRef()[Setting::format_display_secrets_in_show_and_select])
+                    format_settings.show_secrets = false;
+                query_tree->toAST()->format(format_settings);
             }
 
             break;