Delayed interactive

programs/client/Client.cpp

@@ -403,6 +403,33 @@ void Client::initialize(Poco::Util::Application & self)
 }
 
 
+void Client::prepareForInteractive()
+{
+    clearTerminal();
+    showClientVersion();
+
+    /// Load Warnings at the beginning of connection
+    if (!config().has("no-warnings"))
+    {
+        try
+        {
+            std::vector<String> messages = loadWarningMessages();
+            if (!messages.empty())
+            {
+                std::cout << "Warnings:" << std::endl;
+                for (const auto & message : messages)
+                    std::cout << " * " << message << std::endl;
+                std::cout << std::endl;
+            }
+        }
+        catch (...)
+        {
+            /// Ignore exception
+        }
+    }
+}
+
+
 int Client::main(const std::vector<std::string> & /*args*/)
 try
 {
@@ -429,36 +456,11 @@ try
 
     processConfig();
 
-    if (is_interactive)
-    {
-        clearTerminal();
-        showClientVersion();
-    }
-
     connect();
 
-    if (is_interactive)
+    if (is_interactive && !delayed_interactive)
     {
-        /// Load Warnings at the beginning of connection
-        if (!config().has("no-warnings"))
-        {
-            try
-            {
-                std::vector<String> messages = loadWarningMessages();
-                if (!messages.empty())
-                {
-                    std::cout << "Warnings:" << std::endl;
-                    for (const auto & message : messages)
-                        std::cout << " * " << message << std::endl;
-                    std::cout << std::endl;
-                }
-            }
-            catch (...)
-            {
-                /// Ignore exception
-            }
-        }
-
+        prepareForInteractive();
         runInteractive();
     }
     else
@@ -482,6 +484,12 @@ try
             // case so that at least we don't lose an error.
             return -1;
         }
+
+        if (delayed_interactive)
+        {
+            prepareForInteractive();
+            runInteractive();
+        }
     }
 
     return 0;
@@ -1161,11 +1169,11 @@ void Client::processConfig()
     /// - stdin is not a terminal. In this case queries are read from it.
     /// - -qf (--queries-file) command line option is present.
     ///   The value of the option is used as file with query (or of multiple queries) to execute.
-    if (stdin_is_a_tty && !config().has("query") && queries_files.empty())
-    {
-        if (config().has("query") && config().has("queries-file"))
-            throw Exception("Specify either `query` or `queries-file` option", ErrorCodes::BAD_ARGUMENTS);
 
+    delayed_interactive = config().has("interactive") && (config().has("query") || config().has("queries-file"));
+    if (stdin_is_a_tty
+        && (delayed_interactive || (!config().has("query") && queries_files.empty())))
+    {
         is_interactive = true;
     }
     else

programs/client/Client.h

@@ -20,6 +20,7 @@ protected:
     bool processWithFuzzing(const String & full_query) override;
 
     void connect() override;
+    void prepareForInteractive() override;
     void processError(const String & query) const override;
     String getName() const override { return "client"; }
 

programs/local/LocalServer.cpp

@@ -412,6 +412,14 @@ void LocalServer::connect()
 }
 
 
+void LocalServer::prepareForInteractive()
+{
+    clearTerminal();
+    showClientVersion();
+    std::cerr << std::endl;
+}
+
+
 int LocalServer::main(const std::vector<std::string> & /*args*/)
 try
 {
@@ -422,7 +430,10 @@ try
     std::cout << std::fixed << std::setprecision(3);
     std::cerr << std::fixed << std::setprecision(3);
 
-    is_interactive = stdin_is_a_tty && !config().has("query") && !config().has("table-structure") && queries_files.empty();
+    is_interactive = stdin_is_a_tty
+        && (config().hasOption("interactive")
+            || (!config().has("query") && !config().has("table-structure") && queries_files.empty()));
+
     if (!is_interactive)
     {
         /// We will terminate process on error
@@ -443,17 +454,20 @@ try
     applyCmdSettings(global_context);
     connect();
 
-    if (is_interactive)
+    if (is_interactive && !delayed_interactive)
     {
-        clearTerminal();
-        showClientVersion();
-        std::cerr << std::endl;
-
+        prepareForInteractive();
         runInteractive();
     }
     else
     {
         runNonInteractive();
+
+        if (delayed_interactive)
+        {
+            prepareForInteractive();
+            runInteractive();
+        }
     }
 
     cleanup();
@@ -478,7 +492,8 @@ catch (...)
 
 void LocalServer::processConfig()
 {
-    if (is_interactive)
+    delayed_interactive = config().has("interactive") && (config().has("query") || config().has("queries-file"));
+    if (is_interactive && !delayed_interactive)
     {
         if (config().has("query") && config().has("queries-file"))
             throw Exception("Specify either `query` or `queries-file` option", ErrorCodes::BAD_ARGUMENTS);
@@ -490,6 +505,11 @@ void LocalServer::processConfig()
     }
     else
     {
+        if (delayed_interactive)
+        {
+            load_suggestions = true;
+        }
+
         need_render_progress = config().getBool("progress", false);
         echo_queries = config().hasOption("echo") || config().hasOption("verbose");
         ignore_error = config().getBool("ignore-error", false);

programs/local/LocalServer.h

@@ -34,6 +34,7 @@ protected:
     bool executeMultiQuery(const String & all_queries_text) override;
 
     void connect() override;
+    void prepareForInteractive() override;
     void processError(const String & query) const override;
     String getName() const override { return "local"; }
 

src/Client/ClientBase.cpp

@@ -1612,6 +1612,8 @@ void ClientBase::init(int argc, char ** argv)
         ("hardware-utilization", "print hardware utilization information in progress bar")
         ("print-profile-events", po::value(&profile_events.print)->zero_tokens(), "Printing ProfileEvents packets")
         ("profile-events-delay-ms", po::value<UInt64>()->default_value(profile_events.delay_ms), "Delay between printing `ProfileEvents` packets (-1 - print only totals, 0 - print every single packet)")
+
+        ("interactive", "Process queries-file or --query query and start interactive mode")
     ;
 
     addOptions(options_description);

src/Client/ClientBase.h

@@ -57,6 +57,7 @@ protected:
 
     virtual bool executeMultiQuery(const String & all_queries_text) = 0;
     virtual void connect() = 0;
+    virtual void prepareForInteractive() = 0;
     virtual void processError(const String & query) const = 0;
     virtual String getName() const = 0;
 
@@ -138,6 +139,7 @@ private:
 protected:
     bool is_interactive = false; /// Use either interactive line editing interface or batch mode.
     bool is_multiquery = false;
+    bool delayed_interactive = false;
 
     bool echo_queries = false; /// Print queries before execution in batch mode.
     bool ignore_error = false; /// In case of errors, don't print error message, continue to next query. Only applicable for non-interactive mode.

tests/queries/0_stateless/02112_delayed_clickhouse_client_with_queries_file.expect

@@ -0,0 +1,30 @@
+#!/usr/bin/expect -f
+# Tags: no-parallel, no-fasttest
+
+log_user 0
+set timeout 20
+match_max 100000
+
+# A default timeout action is to fail
+expect_after {
+    timeout {
+        exit 1
+    }
+}
+
+
+spawn bash -c "\$CLICKHOUSE_TESTS_DIR/helpers/02112_prepare.sh"
+
+set basedir [file dirname $argv0]
+spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_CLIENT --disable_suggestion --interactive --queries-file \$CURDIR/file_02112"
+expect ":) "
+
+send -- "select * from t format TSV\r"
+expect "1"
+expect ":) "
+
+send -- "exit\r"
+expect eof
+
+spawn bash -c "\$CLICKHOUSE_TESTS_DIR/helpers/02112_clean.sh"
+

tests/queries/0_stateless/02112_delayed_clickhouse_local.expect

@@ -0,0 +1,24 @@
+#!/usr/bin/expect -f
+# Tags: no-unbundled, no-fasttest
+
+log_user 0
+set timeout 20
+match_max 100000
+
+# A default timeout action is to fail
+expect_after {
+    timeout {
+        exit 1
+    }
+}
+
+set basedir [file dirname $argv0]
+spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_LOCAL --disable_suggestion --interactive --query 'create table t(i Int32) engine=Memory; insert into t select 1'"
+expect ":) "
+
+send -- "select * from t format TSV\r"
+expect "1"
+expect ":) "
+
+send -- "exit\r"
+expect eof

tests/queries/0_stateless/02112_delayed_clickhouse_local_with_queries_file.expect

@@ -0,0 +1,30 @@
+#!/usr/bin/expect -f
+# Tags: no-parallel, no-fasttest
+
+log_user 0
+set timeout 20
+match_max 100000
+
+# A default timeout action is to fail
+expect_after {
+    timeout {
+        exit 1
+    }
+}
+
+
+spawn bash -c "\$CLICKHOUSE_TESTS_DIR/helpers/02112_prepare.sh"
+
+set basedir [file dirname $argv0]
+spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_LOCAL --disable_suggestion --interactive --queries-file \$CURDIR/file_02112"
+expect ":) "
+
+send -- "select * from t format TSV\r"
+expect "1"
+expect ":) "
+
+send -- "exit\r"
+expect eof
+
+spawn bash -c "\$CLICKHOUSE_TESTS_DIR/helpers/02112_clean.sh"
+

tests/queries/0_stateless/helpers/02112_clean.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+FILE=${CURDIR}/file_02112
+if [ -f $FILE ]; then
+    rm $FILE
+fi

tests/queries/0_stateless/helpers/02112_prepare.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+FILE=${CURDIR}/file_02112
+if [ -f $FILE ]; then
+    rm $FILE
+fi
+echo "drop table if exists t;create table t(i Int32) engine=Memory; insert into t select 1" >> $FILE