Allow specifying --query multiple times in the command line

docs/en/interfaces/cli.md

@@ -30,7 +30,7 @@ It may lack support for new features.
 
 ## Usage {#cli_usage}
 
-The client can be used in interactive and non-interactive (batch) mode. 
+The client can be used in interactive and non-interactive (batch) mode.
 
 ### Gather your connection details
 <ConnectionDetails />
@@ -177,7 +177,7 @@ You can pass parameters to `clickhouse-client` (all parameters have a default va
 - `--user, -u` – The username. Default value: default.
 - `--password` – The password. Default value: empty string.
 - `--ask-password` - Prompt the user to enter a password.
-- `--query, -q` – The query to process when using non-interactive mode. Cannot be used simultaneously with `--queries-file`.
+- `--query, -q` – The query to process when using non-interactive mode. Specifying `--query` multiple times are allowed(`--query "SELECT 1;" --query "SELECT 2;"...`). Cannot be used simultaneously with `--queries-file`.
 - `--queries-file` – file path with queries to execute. Cannot be used simultaneously with `--query`.
 - `--multiquery, -n` – If specified, multiple queries separated by semicolons can be listed after the `--query` option. For convenience, it is also possible to omit `--query` and pass the queries directly after `--multiquery`.
 - `--multiline, -m` – If specified, allow multiline queries (do not send the query on Enter).

docs/ru/interfaces/cli.md

@@ -128,7 +128,7 @@ $ clickhouse-client --param_tbl="numbers" --param_db="system" --param_col="numbe
 -   `--port` — порт для подключения, по умолчанию — 9000. Обратите внимание: для HTTP-интерфейса и нативного интерфейса используются разные порты.
 -   `--user, -u` — имя пользователя, по умолчанию — ‘default’.
 -   `--password` — пароль, по умолчанию — пустая строка.
--   `--query, -q` — запрос для выполнения, при использовании в неинтерактивном режиме.
+-   `--query, -q` — запрос для выполнения, при использовании в неинтерактивном режиме. Допускается указание `--query` несколько раз (`--query "SELECT 1;" --query "SELECT 2;"...`).
 -   `--queries-file` - путь к файлу с запросами для выполнения. Необходимо указать только одну из опций: `query` или `queries-file`.
 -   `--database, -d` — выбрать текущую БД. Без указания значение берется из настроек сервера (по умолчанию — БД ‘default’).
 -   `--multiline, -m` — если указано — разрешить многострочные запросы, не отправлять запрос по нажатию Enter.

docs/zh/interfaces/cli.md

@@ -116,7 +116,7 @@ $ clickhouse-client --param_tuple_in_tuple="(10, ('dt', 10))" -q "SELECT * FROM
 -   `--port` – 连接的端口，默认值：9000。注意HTTP接口以及TCP原生接口使用的是不同端口。
 -   `--user, -u` – 用户名。 默认值：`default`。
 -   `--password` – 密码。 默认值：空字符串。
--   `--query, -q` – 使用非交互模式查询。
+-   `--query, -q` – 使用非交互模式查询。 允许多次指定 `--query`（`--query "SELECT 1;" --query "SELECT 2;"...`）。
 -   `--database, -d` – 默认当前操作的数据库. 默认值：服务端默认的配置（默认是`default`）。
 -   `--multiline, -m` – 如果指定，允许多行语句查询（Enter仅代表换行，不代表查询语句完结）。
 -   `--multiquery, -n` – 如果指定, 允许处理用`;`号分隔的多个查询，只在非交互模式下生效。

src/Client/ClientBase.cpp

@@ -2484,23 +2484,23 @@ void ClientBase::runNonInteractive()
         return;
     }
 
-    String text;
-    if (config().has("query"))
+    if (!queries.empty())
     {
-        text += config().getRawString("query"); /// Poco configuration should not process substitutions in form of ${...} inside query.
+        for (const auto & query : queries)
+        {
+            bool result = query_fuzzer_runs ? processWithFuzzing(query) : processQueryText(query);
+            if (!result)
+                return;
+        }
     }
     else
     {
         /// If 'query' parameter is not set, read a query from stdin.
         /// The query is read entirely into memory (streaming is disabled).
         ReadBufferFromFileDescriptor in(STDIN_FILENO);
+        String text;
         readStringUntilEOF(text, in);
     }
-
-    if (query_fuzzer_runs)
-        processWithFuzzing(text);
-    else
-        processQueryText(text);
 }
 
 
@@ -2700,7 +2700,7 @@ void ClientBase::init(int argc, char ** argv)
 
         ("config-file,C", po::value<std::string>(), "config-file path")
 
-        ("query,q", po::value<std::string>(), "query")
+        ("query,q", po::value<std::vector<std::string>>(), R"(query; specifying --query multiple times are allowed(--query "SELECT 1;" --query "SELECT 2;"...))")
         ("queries-file", po::value<std::vector<std::string>>()->multitoken(),
             "file path with queries to execute; multiple files can be specified (--queries-file file1 file2...)")
         ("multiquery,n", "If specified, multiple queries separated by semicolons can be listed after --query. For convenience, it is also possible to omit --query and pass the queries directly after --multiquery.")
@@ -2789,7 +2789,7 @@ void ClientBase::init(int argc, char ** argv)
     if (options.count("time"))
         print_time_to_stderr = true;
     if (options.count("query"))
-        config().setString("query", options["query"].as<std::string>());
+        queries = options["query"].as<std::vector<std::string>>();
     if (options.count("query_id"))
         config().setString("query_id", options["query_id"].as<std::string>());
     if (options.count("database"))

src/Client/ClientBase.h

@@ -202,6 +202,7 @@ protected:
     std::optional<Suggest> suggest;
     bool load_suggestions = false;
 
+    std::vector<String> queries; /// If not empty, queries will be read from these strings
     std::vector<String> queries_files; /// If not empty, queries will be read from these files
     std::vector<String> interleave_queries_files; /// If not empty, run queries from these files before processing every file from 'queries_files'.
     std::vector<String> cmd_options;

tests/queries/0_stateless/02771_specify_query_multiple_times.reference

@@ -0,0 +1,13 @@
+101
+202
+303
+404
+404
+404
+505
+Syntax error
+Syntax error
+Empty query
+Empty query
+BAD_ARGUMENTS
+Bad arguments

tests/queries/0_stateless/02771_specify_query_multiple_times.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+# shellcheck source=../shell_config.sh
+. "$CURDIR"/../shell_config.sh
+
+$CLICKHOUSE_LOCAL --query "SELECT 101"
+$CLICKHOUSE_LOCAL --query "SELECT 202" --query "SELECT 303"
+$CLICKHOUSE_LOCAL --query "SELECT 404" --query "SELECT 404" --query "SELECT 404"
+$CLICKHOUSE_LOCAL --query --query 2>&1
+$CLICKHOUSE_LOCAL --query "" --query "" 2>&1
+$CLICKHOUSE_LOCAL --query "SELECT 505;"--query
+
+# Abort if any invalid SQL
+$CLICKHOUSE_LOCAL --query "SELECT 606; S" --query "SELECT 606" 2>&1 | grep -o 'Syntax error'
+$CLICKHOUSE_LOCAL --query "SELECT 707" --query "SELECT 808; S" 2>&1 | grep -o '201'
+$CLICKHOUSE_LOCAL --query "SELECT 909" --query "SELECT 909; S" 2>&1 | grep -o 'Syntax error'
+$CLICKHOUSE_LOCAL --query "; SELECT 111;" --query "SELECT 111;" 2>&1 | grep -o 'Empty query'
+$CLICKHOUSE_LOCAL --query "SELECT 222;" --query "; SELECT 222;" 2>&1 | grep -o '201'
+$CLICKHOUSE_LOCAL --query "SELECT 333;" --query "; SELECT 333;" 2>&1 | grep -o 'Empty query'
+
+
+$CLICKHOUSE_LOCAL --query --query "SELECT 444;" 2>&1 | grep -o 'BAD_ARGUMENTS'
+$CLICKHOUSE_LOCAL --query "SELECT 555;" --query  2>&1 | grep -o 'Bad arguments'