Merge pull request #70091 from ClickHouse/backport/24.9/69448

Backport #69448 to 24.9: Add show_create_query_identifier_quoting_rule setting

docs/en/operations/settings/settings.md

@@ -5682,3 +5682,29 @@ Default value: `0`.
 Enable `IF NOT EXISTS` for `CREATE` statement by default. If either this setting or `IF NOT EXISTS` is specified and a table with the provided name already exists, no exception will be thrown.
 
 Default value: `false`.
+
+## show_create_query_identifier_quoting_rule
+
+Define identifier quoting behavior of the show create query result:
+- `when_necessary`: When the identifiers is one of `{"distinct", "all", "table"}`, or it can cause ambiguity: column names, dictionary attribute names.
+- `always`: Always quote identifiers.
+- `user_display`: When the identifiers is a keyword.
+
+Default value: `when_necessary`.
+
+## show_create_query_identifier_quoting_style
+
+Define identifier quoting style of the show create query result:
+- `Backticks`: \`clickhouse\` style.
+- `DoubleQuotes`: "postgres" style.
+- `BackticksMySQL`: \`mysql\` style, most same as `Backticks`, but it uses '``' to escape '`'.
+
+Default value: `Backticks`.
+
+## mongodb_throw_on_unsupported_query
+
+If enabled, MongoDB tables will return an error when a MongoDB query can't be built.
+
+Not applied for the legacy implementation, or when 'allow_experimental_analyzer=0`.
+
+Default value: `true`.

programs/odbc-bridge/MainHandler.cpp

@@ -164,7 +164,7 @@ void ODBCHandler::handleRequest(HTTPServerRequest & request, HTTPServerResponse
             std::string table_name = params.get("table_name");
             LOG_TRACE(log, "DB name: '{}', table name: '{}'", db_name, table_name);
 
-            auto quoting_style = IdentifierQuotingStyle::None;
+            auto quoting_style = IdentifierQuotingStyle::Backticks;
 #if USE_ODBC
             quoting_style = getQuotingStyle(connection_handler);
 #endif

programs/odbc-bridge/getIdentifierQuote.cpp

@@ -38,7 +38,7 @@ IdentifierQuotingStyle getQuotingStyle(nanodbc::ConnectionHolderPtr connection)
 {
     auto identifier_quote = getIdentifierQuote(connection);
     if (identifier_quote.empty())
-        return IdentifierQuotingStyle::None;
+        return IdentifierQuotingStyle::Backticks;
     else if (identifier_quote[0] == '`')
         return IdentifierQuotingStyle::Backticks;
     else if (identifier_quote[0] == '"')

src/BridgeHelper/XDBCBridgeHelper.h

@@ -243,7 +243,7 @@ protected:
                 throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Failed to parse quoting style from '{}' for service {}",
                     character, BridgeHelperMixin::serviceAlias());
             else if (character.empty())
-                quote_style = IdentifierQuotingStyle::None;
+                quote_style = IdentifierQuotingStyle::Backticks;
             else if (character[0] == '`')
                 quote_style = IdentifierQuotingStyle::Backticks;
             else if (character[0] == '"')

src/Core/ExternalTable.cpp

@@ -97,7 +97,7 @@ void BaseExternalTable::parseStructureFromStructureField(const std::string & arg
                     /*one_line=*/true,
                     /*show_secrets=*/true,
                     /*print_pretty_type_names=*/false,
-                    /*always_quote_identifiers=*/false,
+                    /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
                     /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks));
         else
             throw Exception(ErrorCodes::BAD_ARGUMENTS, "Error while parsing table structure: expected column definition, got {}", child->formatForErrorMessage());
@@ -122,7 +122,7 @@ void BaseExternalTable::parseStructureFromTypesField(const std::string & argumen
                 /*one_line=*/true,
                 /*show_secrets=*/true,
                 /*print_pretty_type_names=*/false,
-                /*always_quote_identifiers=*/false,
+                /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
                 /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks));
 }
 

src/Core/FormatFactorySettingsDeclaration.h

@@ -257,8 +257,8 @@
     M(DateTimeOverflowBehavior, date_time_overflow_behavior, "ignore", "Overflow mode for Date, Date32, DateTime, DateTime64 types. Possible values: 'ignore', 'throw', 'saturate'.", 0) \
     M(Bool, validate_experimental_and_suspicious_types_inside_nested_types, true, "Validate usage of experimental and suspicious types inside nested types like Array/Map/Tuple", 0) \
     \
-    M(Bool, output_format_always_quote_identifiers, false, "Always quote identifiers", 0) \
-    M(IdentifierQuotingStyle, output_format_identifier_quoting_style, IdentifierQuotingStyle::Backticks, "Set the quoting style for identifiers", 0) \
+    M(IdentifierQuotingRule, show_create_query_identifier_quoting_rule, IdentifierQuotingRule::WhenNecessary, "Set the quoting rule for identifiers in SHOW CREATE query", 0) \
+    M(IdentifierQuotingStyle, show_create_query_identifier_quoting_style, IdentifierQuotingStyle::Backticks, "Set the quoting style for identifiers in SHOW CREATE query", 0) \
 
 // End of FORMAT_FACTORY_SETTINGS
 

src/Core/Settings.h

@@ -58,6 +58,7 @@ class WriteBuffer;
     M(CLASS_NAME, Double) \
     M(CLASS_NAME, EscapingRule) \
     M(CLASS_NAME, Float) \
+    M(CLASS_NAME, IdentifierQuotingRule) \
     M(CLASS_NAME, IdentifierQuotingStyle) \
     M(CLASS_NAME, Int32) \
     M(CLASS_NAME, Int64) \

src/Core/SettingsChangesHistory.cpp

@@ -67,6 +67,11 @@ static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory
     },
     {"24.10",
         {
+            {"mongodb_throw_on_unsupported_query", false, true, "New setting."},
+            {"enable_parallel_replicas", false, false, "Parallel replicas with read tasks became the Beta tier feature."},
+            {"parallel_replicas_mode", "read_tasks", "read_tasks", "This setting was introduced as a part of making parallel replicas feature Beta"},
+            {"show_create_query_identifier_quoting_rule", "when_necessary", "when_necessary", "New setting."},
+            {"show_create_query_identifier_quoting_style", "Backticks", "Backticks", "New setting."},
         }
     },
     {"24.9",
@@ -77,8 +82,6 @@ static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory
             {"join_output_by_rowlist_perkey_rows_threshold", 0, 5, "The lower limit of per-key average rows in the right table to determine whether to output by row list in hash join."},
             {"create_if_not_exists", false, false, "New setting."},
             {"allow_materialized_view_with_bad_select", true, true, "Support (but not enable yet) stricter validation in CREATE MATERIALIZED VIEW"},
-            {"output_format_always_quote_identifiers", false, false, "New setting."},
-            {"output_format_identifier_quoting_style", "Backticks", "Backticks", "New setting."},
             {"parallel_replicas_mark_segment_size", 128, 0, "Value for this setting now determined automatically"},
             {"database_replicated_allow_replicated_engine_arguments", 1, 0, "Don't allow explicit arguments by default"},
             {"database_replicated_allow_explicit_uuid", 0, 0, "Added a new setting to disallow explicitly specifying table UUID"},

src/Core/SettingsEnums.cpp

@@ -245,9 +245,17 @@ IMPLEMENT_SETTING_ENUM(
     ErrorCodes::BAD_ARGUMENTS,
     {{"throw", GroupArrayActionWhenLimitReached::THROW}, {"discard", GroupArrayActionWhenLimitReached::DISCARD}})
 
-IMPLEMENT_SETTING_ENUM(IdentifierQuotingStyle, ErrorCodes::BAD_ARGUMENTS,
-    {{"None", IdentifierQuotingStyle::None},
-     {"Backticks", IdentifierQuotingStyle::Backticks},
+IMPLEMENT_SETTING_ENUM(
+    IdentifierQuotingStyle,
+    ErrorCodes::BAD_ARGUMENTS,
+    {{"Backticks", IdentifierQuotingStyle::Backticks},
      {"DoubleQuotes", IdentifierQuotingStyle::DoubleQuotes},
      {"BackticksMySQL", IdentifierQuotingStyle::BackticksMySQL}})
+
+IMPLEMENT_SETTING_ENUM(
+    IdentifierQuotingRule,
+    ErrorCodes::BAD_ARGUMENTS,
+    {{"user_display", IdentifierQuotingRule::UserDisplay},
+     {"when_necessary", IdentifierQuotingRule::WhenNecessary},
+     {"always", IdentifierQuotingRule::Always}})
 }

src/Core/SettingsEnums.h

@@ -352,6 +352,7 @@ DECLARE_SETTING_ENUM_WITH_RENAME(DateTimeOverflowBehavior, FormatSettings::DateT
 
 DECLARE_SETTING_ENUM(SQLSecurityType)
 
+DECLARE_SETTING_ENUM(IdentifierQuotingRule)
 DECLARE_SETTING_ENUM(IdentifierQuotingStyle)
 
 enum class GroupArrayActionWhenLimitReached : uint8_t

src/Dictionaries/ExternalQueryBuilder.cpp

@@ -53,10 +53,6 @@ void ExternalQueryBuilder::writeQuoted(const std::string & s, WriteBuffer & out)
 {
     switch (quoting_style)
     {
-        case IdentifierQuotingStyle::None:
-            writeString(s, out);
-            break;
-
         case IdentifierQuotingStyle::Backticks:
             writeBackQuotedString(s, out);
             break;

src/Interpreters/executeQuery.cpp

@@ -847,7 +847,13 @@ static std::tuple<ASTPtr, BlockIO> executeQueryImpl(
             /// Verify that AST formatting is consistent:
             /// If you format AST, parse it back, and format it again, you get the same string.
 
-            String formatted1 = ast->formatWithPossiblyHidingSensitiveData(0, true, true, false, false, IdentifierQuotingStyle::Backticks);
+            String formatted1 = ast->formatWithPossiblyHidingSensitiveData(
+                /*max_length=*/0,
+                /*one_line=*/true,
+                /*show_secrets=*/true,
+                /*print_pretty_type_names=*/false,
+                /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
+                /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks);
 
             /// The query can become more verbose after formatting, so:
             size_t new_max_query_size = max_query_size > 0 ? (1000 + 2 * max_query_size) : 0;
@@ -876,7 +882,13 @@ static std::tuple<ASTPtr, BlockIO> executeQueryImpl(
 
             chassert(ast2);
 
-            String formatted2 = ast2->formatWithPossiblyHidingSensitiveData(0, true, true, false, false, IdentifierQuotingStyle::Backticks);
+            String formatted2 = ast2->formatWithPossiblyHidingSensitiveData(
+                /*max_length=*/0,
+                /*one_line=*/true,
+                /*show_secrets=*/true,
+                /*print_pretty_type_names=*/false,
+                /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
+                /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks);
 
             if (formatted1 != formatted2)
                 throw Exception(ErrorCodes::LOGICAL_ERROR,

src/Interpreters/formatWithPossiblyHidingSecrets.cpp

@@ -8,8 +8,8 @@ namespace DB
 namespace Setting
 {
     extern const SettingsBool format_display_secrets_in_show_and_select;
-    extern const SettingsBool output_format_always_quote_identifiers;
-    extern const SettingsIdentifierQuotingStyle output_format_identifier_quoting_style;
+    extern const SettingsIdentifierQuotingRule show_create_query_identifier_quoting_rule;
+    extern const SettingsIdentifierQuotingStyle show_create_query_identifier_quoting_style;
     extern const SettingsBool print_pretty_type_names;
 }
 
@@ -24,8 +24,8 @@ String format(const SecretHidingFormatSettings & settings)
         settings.one_line,
         show_secrets,
         settings.ctx->getSettingsRef()[Setting::print_pretty_type_names],
-        settings.ctx->getSettingsRef()[Setting::output_format_always_quote_identifiers],
-        settings.ctx->getSettingsRef()[Setting::output_format_identifier_quoting_style]);
+        settings.ctx->getSettingsRef()[Setting::show_create_query_identifier_quoting_rule],
+        settings.ctx->getSettingsRef()[Setting::show_create_query_identifier_quoting_style]);
 }
 
 }

src/Parsers/ASTAssignment.h

@@ -30,7 +30,7 @@ protected:
     {
 
         settings.ostr << (settings.hilite ? hilite_identifier : "");
-        settings.writeIdentifier(column_name);
+        settings.writeIdentifier(column_name, /*ambiguous=*/false);
         settings.ostr << (settings.hilite ? hilite_none : "");
 
         settings.ostr << (settings.hilite ? hilite_operator : "") << " = " << (settings.hilite ? hilite_none : "");

src/Parsers/ASTColumnDeclaration.cpp

@@ -66,8 +66,7 @@ void ASTColumnDeclaration::formatImpl(const FormatSettings & format_settings, Fo
 {
     frame.need_parens = false;
 
-    /// We have to always quote column names to avoid ambiguity with INDEX and other declarations in CREATE query.
-    format_settings.quoteIdentifier(name);
+    format_settings.writeIdentifier(name, /*ambiguous=*/true);
 
     if (type)
     {

src/Parsers/ASTDictionaryAttributeDeclaration.cpp

@@ -35,7 +35,7 @@ void ASTDictionaryAttributeDeclaration::formatImpl(const FormatSettings & settin
 {
     frame.need_parens = false;
 
-    settings.quoteIdentifier(name);
+    settings.writeIdentifier(name, /*ambiguous=*/true);
 
     if (type)
     {

src/Parsers/ASTIdentifier.cpp

@@ -108,7 +108,7 @@ void ASTIdentifier::formatImplWithoutAlias(const FormatSettings & settings, Form
     auto format_element = [&](const String & elem_name)
     {
         settings.ostr << (settings.hilite ? hilite_identifier : "");
-        settings.writeIdentifier(elem_name);
+        settings.writeIdentifier(elem_name, /*ambiguous=*/false);
         settings.ostr << (settings.hilite ? hilite_none : "");
     };
 

src/Parsers/ASTIndexDeclaration.cpp

@@ -79,7 +79,7 @@ void ASTIndexDeclaration::formatImpl(const FormatSettings & s, FormatState & sta
         }
         else
         {
-            s.writeIdentifier(name);
+            s.writeIdentifier(name, /*ambiguous=*/false);
             s.ostr << " ";
             expr->formatImpl(s, state, frame);
         }

src/Parsers/ASTProjectionDeclaration.cpp

@@ -17,7 +17,7 @@ ASTPtr ASTProjectionDeclaration::clone() const
 
 void ASTProjectionDeclaration::formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
 {
-    settings.writeIdentifier(name);
+    settings.writeIdentifier(name, /*ambiguous=*/false);
     std::string indent_str = settings.one_line ? "" : std::string(4u * frame.indent, ' ');
     std::string nl_or_nothing = settings.one_line ? "" : "\n";
     settings.ostr << settings.nl_or_ws << indent_str << "(" << nl_or_nothing;

src/Parsers/ASTSubquery.cpp

@@ -35,7 +35,7 @@ void ASTSubquery::formatImplWithoutAlias(const FormatSettings & settings, Format
     if (!cte_name.empty())
     {
         settings.ostr << (settings.hilite ? hilite_identifier : "");
-        settings.writeIdentifier(cte_name);
+        settings.writeIdentifier(cte_name, /*ambiguous=*/false);
         settings.ostr << (settings.hilite ? hilite_none : "");
         return;
     }

src/Parsers/ASTWithAlias.cpp

@@ -10,7 +10,7 @@ namespace DB
 static void writeAlias(const String & name, const ASTWithAlias::FormatSettings & settings)
 {
     settings.ostr << (settings.hilite ? IAST::hilite_keyword : "") << " AS " << (settings.hilite ? IAST::hilite_alias : "");
-    settings.writeIdentifier(name);
+    settings.writeIdentifier(name, /*ambiguous=*/false);
     settings.ostr << (settings.hilite ? IAST::hilite_none : "");
 }
 
@@ -22,7 +22,7 @@ void ASTWithAlias::formatImpl(const FormatSettings & settings, FormatState & sta
     if (!alias.empty() && !state.printed_asts_with_alias.emplace(frame.current_select, alias, getTreeHash(/*ignore_aliases=*/ true)).second)
     {
         settings.ostr << (settings.hilite ? IAST::hilite_identifier : "");
-        settings.writeIdentifier(alias);
+        settings.writeIdentifier(alias, /*ambiguous=*/false);
         settings.ostr << (settings.hilite ? IAST::hilite_none : "");
     }
     else

src/Parsers/ASTWithElement.cpp

@@ -19,7 +19,7 @@ void ASTWithElement::formatImpl(const FormatSettings & settings, FormatState & s
     std::string indent_str = settings.one_line ? "" : std::string(4 * frame.indent, ' ');
 
     settings.ostr << (settings.hilite ? hilite_alias : "");
-    settings.writeIdentifier(name);
+    settings.writeIdentifier(name, /*ambiguous=*/false);
     settings.ostr << (settings.hilite ? hilite_none : "");
     settings.ostr << (settings.hilite ? hilite_keyword : "") << " AS" << (settings.hilite ? hilite_none : "");
     settings.ostr << settings.nl_or_ws << indent_str;

src/Parsers/CommonParsers.cpp

@@ -1,9 +1,8 @@
-#include <Parsers/CommonParsers.h>
-#include <Common/ErrorCodes.h>
-#include <base/find_symbols.h>
 #include <algorithm>
 #include <cctype>
-
+#include <Parsers/CommonParsers.h>
+#include <base/find_symbols.h>
+#include <Common/ErrorCodes.h>
 namespace DB
 {
 
@@ -35,6 +34,8 @@ public:
         return mapping;
     }
 
+    const std::unordered_set<std::string> & getSet() const { return set; }
+
 private:
     KeyWordToStringConverter()
     {
@@ -63,6 +64,7 @@ private:
         size_t index = static_cast<size_t>(identifier);
         mapping.resize(std::max(index + 1, mapping.size()));
         mapping[index] = value;
+        set.emplace(value);
     }
 
     void checkUnderscore(std::string_view value)
@@ -94,6 +96,7 @@ private:
     }
 
     Strings mapping;
+    std::unordered_set<std::string> set;
 };
 }
 
@@ -108,6 +111,11 @@ const std::vector<String> & getAllKeyWords()
     return KeyWordToStringConverter::instance().getMapping();
 }
 
+const std::unordered_set<std::string> & getKeyWordSet()
+{
+    return KeyWordToStringConverter::instance().getSet();
+}
+
 ParserKeyword::ParserKeyword(Keyword keyword)
     : s(toStringView(keyword))
 {}

src/Parsers/CommonParsers.h

@@ -4,6 +4,7 @@
 
 #include <cassert>
 #include <string_view>
+#include <unordered_set>
 
 namespace DB
 {
@@ -588,6 +589,8 @@ std::string_view toStringView(Keyword type);
 
 const std::vector<String> & getAllKeyWords();
 
+const std::unordered_set<std::string> & getKeyWordSet();
+
 
 /** Parse specified keyword such as SELECT or compound keyword such as ORDER BY.
   * All case insensitive. Requires word boundary.

src/Parsers/IAST.cpp

@@ -1,12 +1,14 @@
 #include <Parsers/IAST.h>
 
+#include <IO/Operators.h>
 #include <IO/WriteBufferFromString.h>
 #include <IO/WriteHelpers.h>
-#include <IO/Operators.h>
+#include <Parsers/CommonParsers.h>
+#include <Parsers/IdentifierQuotingStyle.h>
+#include <Poco/String.h>
 #include <Common/SensitiveDataMasker.h>
 #include <Common/SipHash.h>
 
-
 namespace DB
 {
 
@@ -14,7 +16,6 @@ namespace ErrorCodes
 {
     extern const int TOO_BIG_AST;
     extern const int TOO_DEEP_AST;
-    extern const int BAD_ARGUMENTS;
     extern const int UNKNOWN_ELEMENT_IN_AST;
 }
 
@@ -170,7 +171,7 @@ String IAST::formatWithPossiblyHidingSensitiveData(
     bool one_line,
     bool show_secrets,
     bool print_pretty_type_names,
-    bool always_quote_identifiers,
+    IdentifierQuotingRule identifier_quoting_rule,
     IdentifierQuotingStyle identifier_quoting_style) const
 {
 
@@ -178,7 +179,7 @@ String IAST::formatWithPossiblyHidingSensitiveData(
     FormatSettings settings(buf, one_line);
     settings.show_secrets = show_secrets;
     settings.print_pretty_type_names = print_pretty_type_names;
-    settings.always_quote_identifiers = always_quote_identifiers;
+    settings.identifier_quoting_rule = identifier_quoting_rule;
     settings.identifier_quoting_style = identifier_quoting_style;
     format(settings);
     return wipeSensitiveDataAndCutToLength(buf.str(), max_length);
@@ -217,22 +218,24 @@ String IAST::getColumnNameWithoutAlias() const
 }
 
 
-void IAST::FormatSettings::writeIdentifier(const String & name) const
+void IAST::FormatSettings::writeIdentifier(const String & name, bool ambiguous) const
 {
+    bool must_quote
+        = (identifier_quoting_rule == IdentifierQuotingRule::Always
+           || (ambiguous && identifier_quoting_rule == IdentifierQuotingRule::WhenNecessary));
+
+    if (identifier_quoting_rule == IdentifierQuotingRule::UserDisplay && !must_quote)
+    {
+        // Quote `name` if it is one of the keywords when `identifier_quoting_rule` is `IdentifierQuotingRule::UserDisplay`
+        const auto & keyword_set = getKeyWordSet();
+        must_quote = keyword_set.contains(Poco::toUpper(name));
+    }
+
     switch (identifier_quoting_style)
     {
-        case IdentifierQuotingStyle::None:
-        {
-            if (always_quote_identifiers)
-                throw Exception(ErrorCodes::BAD_ARGUMENTS,
-                                "Incompatible arguments: always_quote_identifiers = true && "
-                                "identifier_quoting_style == IdentifierQuotingStyle::None");
-            writeString(name, ostr);
-            break;
-        }
         case IdentifierQuotingStyle::Backticks:
         {
-            if (always_quote_identifiers)
+            if (must_quote)
                 writeBackQuotedString(name, ostr);
             else
                 writeProbablyBackQuotedString(name, ostr);
@@ -240,7 +243,7 @@ void IAST::FormatSettings::writeIdentifier(const String & name) const
         }
         case IdentifierQuotingStyle::DoubleQuotes:
         {
-            if (always_quote_identifiers)
+            if (must_quote)
                 writeDoubleQuotedString(name, ostr);
             else
                 writeProbablyDoubleQuotedString(name, ostr);
@@ -248,7 +251,7 @@ void IAST::FormatSettings::writeIdentifier(const String & name) const
         }
         case IdentifierQuotingStyle::BackticksMySQL:
         {
-            if (always_quote_identifiers)
+            if (must_quote)
                 writeBackQuotedStringMySQL(name, ostr);
             else
                 writeProbablyBackQuotedStringMySQL(name, ostr);
@@ -257,34 +260,6 @@ void IAST::FormatSettings::writeIdentifier(const String & name) const
     }
 }
 
-
-void IAST::FormatSettings::quoteIdentifier(const String & name) const
-{
-    switch (identifier_quoting_style)
-    {
-        case IdentifierQuotingStyle::None:
-        {
-            writeBackQuotedString(name, ostr);
-            break;
-        }
-        case IdentifierQuotingStyle::Backticks:
-        {
-            writeBackQuotedString(name, ostr);
-            break;
-        }
-        case IdentifierQuotingStyle::DoubleQuotes:
-        {
-            writeDoubleQuotedString(name, ostr);
-            break;
-        }
-        case IdentifierQuotingStyle::BackticksMySQL:
-        {
-            writeBackQuotedStringMySQL(name, ostr);
-            break;
-        }
-    }
-}
-
 void IAST::dumpTree(WriteBuffer & ostr, size_t indent) const
 {
     String indent_str(indent, '-');

src/Parsers/IAST.h

@@ -196,7 +196,7 @@ public:
         WriteBuffer & ostr;
         bool one_line;
         bool hilite;
-        bool always_quote_identifiers;
+        IdentifierQuotingRule identifier_quoting_rule;
         IdentifierQuotingStyle identifier_quoting_style;
         bool show_secrets; /// Show secret parts of the AST (e.g. passwords, encryption keys).
         char nl_or_ws; /// Newline or whitespace.
@@ -207,7 +207,7 @@ public:
             WriteBuffer & ostr_,
             bool one_line_,
             bool hilite_ = false,
-            bool always_quote_identifiers_ = false,
+            IdentifierQuotingRule identifier_quoting_rule_ = IdentifierQuotingRule::WhenNecessary,
             IdentifierQuotingStyle identifier_quoting_style_ = IdentifierQuotingStyle::Backticks,
             bool show_secrets_ = true,
             LiteralEscapingStyle literal_escaping_style_ = LiteralEscapingStyle::Regular,
@@ -215,7 +215,7 @@ public:
             : ostr(ostr_)
             , one_line(one_line_)
             , hilite(hilite_)
-            , always_quote_identifiers(always_quote_identifiers_)
+            , identifier_quoting_rule(identifier_quoting_rule_)
             , identifier_quoting_style(identifier_quoting_style_)
             , show_secrets(show_secrets_)
             , nl_or_ws(one_line ? ' ' : '\n')
@@ -228,7 +228,7 @@ public:
             : ostr(ostr_)
             , one_line(other.one_line)
             , hilite(other.hilite)
-            , always_quote_identifiers(other.always_quote_identifiers)
+            , identifier_quoting_rule(other.identifier_quoting_rule)
             , identifier_quoting_style(other.identifier_quoting_style)
             , show_secrets(other.show_secrets)
             , nl_or_ws(other.nl_or_ws)
@@ -237,10 +237,7 @@ public:
         {
         }
 
-        void writeIdentifier(const String & name) const;
-        // Quote identifier `name` even when `always_quote_identifiers` is false.
-        // If `identifier_quoting_style` is `IdentifierQuotingStyle::None`, quote it with `IdentifierQuotingStyle::Backticks`
-        void quoteIdentifier(const String & name) const;
+        void writeIdentifier(const String & name, bool ambiguous) const;
     };
 
     /// State. For example, a set of nodes can be remembered, which we already walk through.
@@ -286,7 +283,7 @@ public:
         bool one_line,
         bool show_secrets,
         bool print_pretty_type_names,
-        bool always_quote_identifiers,
+        IdentifierQuotingRule identifier_quoting_rule,
         IdentifierQuotingStyle identifier_quoting_style) const;
 
     /** formatForLogging and formatForErrorMessage always hide secrets. This inconsistent
@@ -296,12 +293,24 @@ public:
       */
     String formatForLogging(size_t max_length = 0) const
     {
-        return formatWithPossiblyHidingSensitiveData(max_length, true, false, false, false, IdentifierQuotingStyle::Backticks);
+        return formatWithPossiblyHidingSensitiveData(
+            /*max_length=*/max_length,
+            /*one_line=*/true,
+            /*show_secrets=*/false,
+            /*print_pretty_type_names=*/false,
+            /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
+            /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks);
     }
 
     String formatForErrorMessage() const
     {
-        return formatWithPossiblyHidingSensitiveData(0, true, false, false, false, IdentifierQuotingStyle::Backticks);
+        return formatWithPossiblyHidingSensitiveData(
+            /*max_length=*/0,
+            /*one_line=*/true,
+            /*show_secrets=*/false,
+            /*print_pretty_type_names=*/false,
+            /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
+            /*identifier_quoting_style=*/IdentifierQuotingStyle::Backticks);
     }
 
     virtual bool hasSecretParts() const { return childrenHaveSecretParts(); }

src/Parsers/IdentifierQuotingStyle.h

@@ -8,10 +8,19 @@ namespace DB
 /// NOTE There could be differences in escaping rules inside quotes. Escaping rules may not match that required by specific external DBMS.
 enum class IdentifierQuotingStyle : uint8_t
 {
-    None,            /// Write as-is, without quotes.
-    Backticks,       /// `clickhouse` style
-    DoubleQuotes,    /// "postgres" style
-    BackticksMySQL,  /// `mysql` style, most same as Backticks, but it uses '``' to escape '`'
+    Backticks, /// `clickhouse` style
+    DoubleQuotes, /// "postgres" style
+    BackticksMySQL, /// `mysql` style, most same as Backticks, but it uses '``' to escape '`'
 };
 
+enum class IdentifierQuotingRule : uint8_t
+{
+    /// When the identifiers is one of {"distinct", "all", "table"} (defined in `DB::writeProbablyQuotedStringImpl`),
+    /// or it can cause ambiguity: column names, dictionary attribute names (passed to `DB::FormatSettings::writeIdentifier` with `ambiguous=true`)
+    WhenNecessary,
+    /// Always quote identifiers
+    Always,
+    /// When the identifiers is a keyword (defined in `DB::Keyword`)
+    UserDisplay,
+};
 }

src/Parsers/getInsertQuery.cpp

@@ -19,7 +19,12 @@ std::string getInsertQuery(const std::string & db_name, const std::string & tabl
         query.columns->children.emplace_back(std::make_shared<ASTIdentifier>(column.name));
 
     WriteBufferFromOwnString buf;
-    IAST::FormatSettings settings(buf, /*one_line*/ true, /*hilite*/ false, /*always_quote_identifiers*/ true, /*identifier_quoting_style*/ quoting);
+    IAST::FormatSettings settings(
+        /*ostr_=*/buf,
+        /*one_line=*/true,
+        /*hilite=*/false,
+        /*identifier_quoting_rule=*/IdentifierQuotingRule::WhenNecessary,
+        /*identifier_quoting_style=*/quoting);
     query.IAST::format(settings);
     return buf.str();
 }

src/Processors/QueryPlan/ReadFromRemote.cpp

@@ -104,7 +104,8 @@ static String formattedAST(const ASTPtr & ast)
         return {};
 
     WriteBufferFromOwnString buf;
-    IAST::FormatSettings ast_format_settings(buf, /*one_line*/ true, /*hilite*/ false, /*always_quote_identifiers*/ true);
+    IAST::FormatSettings ast_format_settings(
+        /*ostr_=*/buf, /*one_line=*/true, /*hilite=*/false, /*identifier_quoting_rule=*/IdentifierQuotingRule::Always);
     ast->format(ast_format_settings);
     return buf.str();
 }

src/Storages/StorageDistributed.cpp

@@ -23,15 +23,15 @@
 
 #include <Columns/ColumnConst.h>
 
-#include <Common/threadPoolCallbackRunner.h>
+#include <Common/CurrentMetrics.h>
 #include <Common/Macros.h>
 #include <Common/ProfileEvents.h>
 #include <Common/escapeForFileName.h>
-#include <Common/typeid_cast.h>
+#include <Common/formatReadable.h>
 #include <Common/quoteString.h>
 #include <Common/randomSeed.h>
-#include <Common/formatReadable.h>
-#include <Common/CurrentMetrics.h>
+#include <Common/threadPoolCallbackRunner.h>
+#include <Common/typeid_cast.h>
 
 #include <Parsers/ASTExpressionList.h>
 #include <Parsers/ASTFunction.h>
@@ -40,8 +40,9 @@
 #include <Parsers/ASTLiteral.h>
 #include <Parsers/ASTSelectQuery.h>
 #include <Parsers/ASTSelectWithUnionQuery.h>
-#include <Parsers/parseQuery.h>
 #include <Parsers/IAST.h>
+#include <Parsers/IdentifierQuotingStyle.h>
+#include <Parsers/parseQuery.h>
 
 #include <Analyzer/ColumnNode.h>
 #include <Analyzer/FunctionNode.h>
@@ -1003,7 +1004,8 @@ std::optional<QueryPipeline> StorageDistributed::distributedWriteBetweenDistribu
     String new_query_str;
     {
         WriteBufferFromOwnString buf;
-        IAST::FormatSettings ast_format_settings(buf, /*one_line*/ true, /*hilite*/ false, /*always_quote_identifiers_=*/ true);
+        IAST::FormatSettings ast_format_settings(
+            /*ostr_=*/buf, /*one_line*/ true, /*hilite*/ false, /*identifier_quoting_rule_=*/IdentifierQuotingRule::Always);
         new_query->IAST::format(ast_format_settings);
         new_query_str = buf.str();
     }
@@ -1123,7 +1125,8 @@ std::optional<QueryPipeline> StorageDistributed::distributedWriteFromClusterStor
     String new_query_str;
     {
         WriteBufferFromOwnString buf;
-        IAST::FormatSettings ast_format_settings(buf, /*one_line*/ true, /*hilite*/ false, /*always_quote_identifiers*/ true);
+        IAST::FormatSettings ast_format_settings(
+            /*ostr_=*/buf, /*one_line=*/true, /*hilite=*/false, /*identifier_quoting_rule=*/IdentifierQuotingRule::Always);
         new_query->IAST::format(ast_format_settings);
         new_query_str = buf.str();
     }

src/Storages/StorageReplicatedMergeTree.cpp

@@ -5720,7 +5720,8 @@ std::optional<QueryPipeline> StorageReplicatedMergeTree::distributedWriteFromClu
     String query_str;
     {
         WriteBufferFromOwnString buf;
-        IAST::FormatSettings ast_format_settings(buf, /*one_line*/ true, /*hilite*/ false, /*always_quote_identifiers*/ true);
+        IAST::FormatSettings ast_format_settings(
+            /*ostr_=*/buf, /*one_line=*/true, /*hilite=*/false, /*identifier_quoting_rule=*/IdentifierQuotingRule::Always);
         query.IAST::format(ast_format_settings);
         query_str = buf.str();
     }

src/Storages/transformQueryForExternalDatabase.cpp

@@ -386,13 +386,16 @@ String transformQueryForExternalDatabaseImpl(
 
     ASTPtr select_ptr = select;
     dropAliases(select_ptr);
-
+    IdentifierQuotingRule identifier_quoting_rule = IdentifierQuotingRule::Always;
     WriteBufferFromOwnString out;
     IAST::FormatSettings settings(
-            out, /*one_line*/ true, /*hilite*/ false,
-            /*always_quote_identifiers*/ identifier_quoting_style != IdentifierQuotingStyle::None,
-            /*identifier_quoting_style*/ identifier_quoting_style, /*show_secrets_*/ true,
-            /*literal_escaping_style*/ literal_escaping_style);
+        /*ostr_=*/out,
+        /*one_line=*/true,
+        /*hilite=*/false,
+        /*identifier_quoting_rule=*/identifier_quoting_rule,
+        /*identifier_quoting_style=*/identifier_quoting_style,
+        /*show_secrets_=*/true,
+        /*literal_escaping_style=*/literal_escaping_style);
 
     select->format(settings);
 

tests/integration/test_storage_kafka/test.py

@@ -1890,7 +1890,15 @@ def test_kafka_recreate_kafka_table(kafka_cluster, create_query_generator, log_l
         )
 
         # data was not flushed yet (it will be flushed 7.5 sec after creating MV)
-        assert int(instance.query("SELECT count() FROM test.view")) == 240
+        assert (
+            int(
+                instance.query_with_retry(
+                    sql="SELECT count() FROM test.view",
+                    check_callback=lambda x: x == 240,
+                )
+            )
+            == 240
+        )
 
         instance.query(
             """

tests/queries/0_stateless/03230_output_format_identifier_quoting_style.reference

@@ -1,40 +0,0 @@
-CREATE TABLE default.uk_price_paid\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
-CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
-CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE default.uk_price_paid\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
-CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
-CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE `default`.`uk_price_paid`\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX `county_index` `county` TYPE set(10) GRANULARITY 1,\n    PROJECTION `town_date_projection`\n    (\n        SELECT \n            `town`,\n            `date`,\n            `price`\n        ORDER BY \n            `town`,\n            `date`\n    ),\n    PROJECTION `handy_aggs_projection`\n    (\n        SELECT \n            avg(`price`),\n            max(`price`),\n            sum(`price`)\n        GROUP BY `town`\n    )\n)\nENGINE = MergeTree\nORDER BY (`postcode1`, `postcode2`, `date`)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW `default`.`prices_by_year_view` TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    `price`,\n    `date`,\n    `addr1`,\n    `addr2`,\n    `street`,\n    `town`,\n    `district`,\n    `county`\nFROM `default`.`uk_price_paid`
-CREATE TABLE `default`.`uk_prices_aggs_dest`\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW `default`.`uk_prices_aggs_view` TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(`price`) AS `min_price`,\n    maxSimpleState(`price`) AS `max_price`,\n    countState(`price`) AS `volume`,\n    avgState(`price`) AS `avg_price`\nFROM `default`.`uk_price_paid`\nGROUP BY `month`
-CREATE DICTIONARY `default`.`uk_mortgage_rates_dict`\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE default.uk_price_paid\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
-CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
-CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE "default"."uk_price_paid"\n(\n    "price" UInt32,\n    "date" Date,\n    "postcode1" LowCardinality(String),\n    "postcode2" LowCardinality(String),\n    "type" Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    "is_new" UInt8,\n    "duration" Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "locality" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String),\n    INDEX "county_index" "county" TYPE set(10) GRANULARITY 1,\n    PROJECTION "town_date_projection"\n    (\n        SELECT \n            "town",\n            "date",\n            "price"\n        ORDER BY \n            "town",\n            "date"\n    ),\n    PROJECTION "handy_aggs_projection"\n    (\n        SELECT \n            avg("price"),\n            max("price"),\n            sum("price")\n        GROUP BY "town"\n    )\n)\nENGINE = MergeTree\nORDER BY ("postcode1", "postcode2", "date")\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW "default"."prices_by_year_view" TO default.prices_by_year_dest\n(\n    "price" UInt32,\n    "date" Date,\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String)\n)\nAS SELECT\n    "price",\n    "date",\n    "addr1",\n    "addr2",\n    "street",\n    "town",\n    "district",\n    "county"\nFROM "default"."uk_price_paid"
-CREATE TABLE "default"."uk_prices_aggs_dest"\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction("min", UInt32),\n    "max_price" SimpleAggregateFunction("max", UInt32),\n    "volume" AggregateFunction("count", UInt32),\n    "avg_price" AggregateFunction("avg", UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY "month"\nORDER BY "month"\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW "default"."uk_prices_aggs_view" TO default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction("min", UInt32),\n    "max_price" SimpleAggregateFunction("max", UInt32),\n    "volume" AggregateFunction("count", UInt32),\n    "avg_price" AggregateFunction("avg", UInt32)\n)\nAS WITH toStartOfMonth("date") AS "month"\nSELECT\n    "month",\n    minSimpleState("price") AS "min_price",\n    maxSimpleState("price") AS "max_price",\n    countState("price") AS "volume",\n    avgState("price") AS "avg_price"\nFROM "default"."uk_price_paid"\nGROUP BY "month"
-CREATE DICTIONARY "default"."uk_mortgage_rates_dict"\n(\n    "date" DateTime64,\n    "variable" Decimal32(2),\n    "fixed" Decimal32(2),\n    "bank" Decimal32(2)\n)\nPRIMARY KEY "date"\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE default.uk_price_paid\n(\n    "price" UInt32,\n    "date" Date,\n    "postcode1" LowCardinality(String),\n    "postcode2" LowCardinality(String),\n    "type" Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    "is_new" UInt8,\n    "duration" Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "locality" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    "price" UInt32,\n    "date" Date,\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
-CREATE TABLE default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction(min, UInt32),\n    "max_price" SimpleAggregateFunction(max, UInt32),\n    "volume" AggregateFunction(count, UInt32),\n    "avg_price" AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction(min, UInt32),\n    "max_price" SimpleAggregateFunction(max, UInt32),\n    "volume" AggregateFunction(count, UInt32),\n    "avg_price" AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
-CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    "date" DateTime64,\n    "variable" Decimal32(2),\n    "fixed" Decimal32(2),\n    "bank" Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE `default`.`uk_price_paid`\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX `county_index` `county` TYPE set(10) GRANULARITY 1,\n    PROJECTION `town_date_projection`\n    (\n        SELECT \n            `town`,\n            `date`,\n            `price`\n        ORDER BY \n            `town`,\n            `date`\n    ),\n    PROJECTION `handy_aggs_projection`\n    (\n        SELECT \n            avg(`price`),\n            max(`price`),\n            sum(`price`)\n        GROUP BY `town`\n    )\n)\nENGINE = MergeTree\nORDER BY (`postcode1`, `postcode2`, `date`)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW `default`.`prices_by_year_view` TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    `price`,\n    `date`,\n    `addr1`,\n    `addr2`,\n    `street`,\n    `town`,\n    `district`,\n    `county`\nFROM `default`.`uk_price_paid`
-CREATE TABLE `default`.`uk_prices_aggs_dest`\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW `default`.`uk_prices_aggs_view` TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(`price`) AS `min_price`,\n    maxSimpleState(`price`) AS `max_price`,\n    countState(`price`) AS `volume`,\n    avgState(`price`) AS `avg_price`\nFROM `default`.`uk_price_paid`\nGROUP BY `month`
-CREATE DICTIONARY `default`.`uk_mortgage_rates_dict`\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
-CREATE TABLE default.uk_price_paid\n(\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
-CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
-CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
-CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())

tests/queries/0_stateless/03230_output_format_identifier_quoting_style.sql

@@ -1,328 +0,0 @@
-DROP DICTIONARY IF EXISTS uk_mortgage_rates_dict;
-DROP TABLE IF EXISTS uk_mortgage_rates;
-DROP VIEW IF EXISTS uk_prices_aggs_view;
-DROP TABLE IF EXISTS uk_prices_aggs_dest;
-DROP VIEW IF EXISTS prices_by_year_view;
-DROP TABLE IF EXISTS prices_by_year_dest;
-DROP TABLE IF EXISTS uk_price_paid;
-
--- Create tables, views, dictionaries
-
-CREATE TABLE uk_price_paid
-(
-    price UInt32,
-    date Date,
-    postcode1 LowCardinality(String),
-    postcode2 LowCardinality(String),
-    type Enum('terraced' = 1, 'semi-detached' = 2, 'detached' = 3, 'flat' = 4, 'other' = 0),
-    is_new UInt8,
-    duration Enum('freehold' = 1, 'leasehold' = 2, 'unknown' = 0),
-    addr1 String,
-    addr2 String,
-    street LowCardinality(String),
-    locality LowCardinality(String),
-    town LowCardinality(String),
-    district LowCardinality(String),
-    county LowCardinality(String),
-    INDEX county_index county TYPE set(10) GRANULARITY 1,
-    PROJECTION town_date_projection
-    (
-        SELECT 
-            town,
-            date,
-            price
-        ORDER BY 
-            town,
-            date
-    ),
-    PROJECTION handy_aggs_projection
-    (
-        SELECT 
-            avg(price),
-            max(price),
-            sum(price)
-        GROUP BY town
-    )
-)
-ENGINE = MergeTree
-ORDER BY (postcode1, postcode2, date);
-
-CREATE TABLE prices_by_year_dest (
-    price UInt32,
-    date Date,
-    addr1 String,
-    addr2 String,
-    street LowCardinality(String),
-    town LowCardinality(String),
-    district LowCardinality(String),
-    county LowCardinality(String)
-)
-ENGINE = MergeTree
-PRIMARY KEY (town, date)
-PARTITION BY toYear(date);
-
-CREATE MATERIALIZED VIEW prices_by_year_view
-TO prices_by_year_dest
-AS
-    SELECT
-        price,
-        date,
-        addr1,
-        addr2,
-        street,
-        town,
-        district,
-        county
-    FROM uk_price_paid;
-
-CREATE TABLE uk_prices_aggs_dest (
-    month Date,
-    min_price SimpleAggregateFunction(min, UInt32),
-    max_price SimpleAggregateFunction(max, UInt32),
-    volume AggregateFunction(count, UInt32),
-    avg_price AggregateFunction(avg, UInt32)
-)
-ENGINE = AggregatingMergeTree
-PRIMARY KEY month;
-
-CREATE MATERIALIZED VIEW uk_prices_aggs_view
-TO uk_prices_aggs_dest
-AS
-    WITH
-        toStartOfMonth(date) AS month
-    SELECT
-        month,
-        minSimpleState(price) AS min_price,
-        maxSimpleState(price) AS max_price,
-        countState(price) AS volume,
-        avgState(price) AS avg_price
-    FROM uk_price_paid
-    GROUP BY month;
-
-CREATE TABLE uk_mortgage_rates (
-    date DateTime64,
-    variable Decimal32(2),
-    fixed Decimal32(2),
-    bank Decimal32(2)
-)
-ENGINE Memory();
-
-INSERT INTO uk_mortgage_rates VALUES ('2004-02-29', 5.02, 4.9, 4);
-INSERT INTO uk_mortgage_rates VALUES ('2004-03-31', 5.11, 4.91, 4);
-
-CREATE DICTIONARY uk_mortgage_rates_dict (
-    date DateTime64,
-    variable Decimal32(2),
-    fixed Decimal32(2),
-    bank Decimal32(2)
-)
-PRIMARY KEY date
-SOURCE(
-  CLICKHOUSE(TABLE 'uk_mortgage_rates')
-)
-LAYOUT(COMPLEX_KEY_HASHED())
-LIFETIME(2628000000);
-
-
--- Show tables, views, dictionaries with default settings
-SHOW CREATE TABLE uk_price_paid;
-
-SHOW CREATE VIEW prices_by_year_view;
-
-SHOW CREATE uk_prices_aggs_dest;
-
-SHOW CREATE VIEW uk_prices_aggs_view;
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict;
-
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=false, output_format_identifier_quoting_style='None' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='None';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='None';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='None';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='None';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='None';
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=true, output_format_identifier_quoting_style='Backticks' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='Backticks';
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=false, output_format_identifier_quoting_style='Backticks' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='Backticks';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='Backticks';
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=true, output_format_identifier_quoting_style='DoubleQuotes' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=false, output_format_identifier_quoting_style='DoubleQuotes' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='DoubleQuotes';
-
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=true, output_format_identifier_quoting_style='BackticksMySQL' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=true,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
--- Show tables, views, dictionaries with output_format_always_quote_identifiers=false, output_format_identifier_quoting_style='BackticksMySQL' 
-SHOW CREATE TABLE uk_price_paid
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE VIEW prices_by_year_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE uk_prices_aggs_dest
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE VIEW uk_prices_aggs_view
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-SHOW CREATE DICTIONARY uk_mortgage_rates_dict
-SETTINGS
-    output_format_always_quote_identifiers=false,
-    output_format_identifier_quoting_style='BackticksMySQL';
-
-DROP DICTIONARY uk_mortgage_rates_dict;
-DROP TABLE uk_mortgage_rates;
-DROP VIEW uk_prices_aggs_view;
-DROP TABLE uk_prices_aggs_dest;
-DROP VIEW prices_by_year_view;
-DROP TABLE prices_by_year_dest;
-DROP TABLE uk_price_paid;

tests/queries/0_stateless/03230_show_create_query_identifier_quoting_style.reference

@@ -0,0 +1,60 @@
+Settings: default
+CREATE TABLE default.uk_price_paid\n(\n    `Table` String,\n    `Engine` String,\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: always & Backticks
+CREATE TABLE `default`.`uk_price_paid`\n(\n    `Table` String,\n    `Engine` String,\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX `county_index` `county` TYPE set(10) GRANULARITY 1,\n    PROJECTION `town_date_projection`\n    (\n        SELECT \n            `town`,\n            `date`,\n            `price`\n        ORDER BY \n            `town`,\n            `date`\n    ),\n    PROJECTION `handy_aggs_projection`\n    (\n        SELECT \n            avg(`price`),\n            max(`price`),\n            sum(`price`)\n        GROUP BY `town`\n    )\n)\nENGINE = MergeTree\nORDER BY (`postcode1`, `postcode2`, `date`)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW `default`.`prices_by_year_view` TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    `price`,\n    `date`,\n    `addr1`,\n    `addr2`,\n    `street`,\n    `town`,\n    `district`,\n    `county`\nFROM `default`.`uk_price_paid`
+CREATE TABLE `default`.`uk_prices_aggs_dest`\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW `default`.`uk_prices_aggs_view` TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(`price`) AS `min_price`,\n    maxSimpleState(`price`) AS `max_price`,\n    countState(`price`) AS `volume`,\n    avgState(`price`) AS `avg_price`\nFROM `default`.`uk_price_paid`\nGROUP BY `month`
+CREATE DICTIONARY `default`.`uk_mortgage_rates_dict`\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: user_display & Backticks
+CREATE TABLE default.uk_price_paid\n(\n    `Table` String,\n    `Engine` String,\n    price UInt32,\n    `date` Date,\n    postcode1 LowCardinality(String),\n    postcode2 LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    is_new UInt8,\n    duration Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    locality LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            `date`,\n            price\n        ORDER BY \n            town,\n            `date`\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, `date`)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    price UInt32,\n    `date` Date,\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String)\n)\nAS SELECT\n    price,\n    `date`,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    min_price SimpleAggregateFunction(`min`, UInt32),\n    max_price SimpleAggregateFunction(`max`, UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    min_price SimpleAggregateFunction(`min`, UInt32),\n    max_price SimpleAggregateFunction(`max`, UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY `month`
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    variable Decimal32(2),\n    fixed Decimal32(2),\n    bank Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: when_necessary & Backticks
+CREATE TABLE default.uk_price_paid\n(\n    `Table` String,\n    `Engine` String,\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: always & DoubleQuotes
+CREATE TABLE "default"."uk_price_paid"\n(\n    "Table" String,\n    "Engine" String,\n    "price" UInt32,\n    "date" Date,\n    "postcode1" LowCardinality(String),\n    "postcode2" LowCardinality(String),\n    "type" Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    "is_new" UInt8,\n    "duration" Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "locality" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String),\n    INDEX "county_index" "county" TYPE set(10) GRANULARITY 1,\n    PROJECTION "town_date_projection"\n    (\n        SELECT \n            "town",\n            "date",\n            "price"\n        ORDER BY \n            "town",\n            "date"\n    ),\n    PROJECTION "handy_aggs_projection"\n    (\n        SELECT \n            avg("price"),\n            max("price"),\n            sum("price")\n        GROUP BY "town"\n    )\n)\nENGINE = MergeTree\nORDER BY ("postcode1", "postcode2", "date")\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW "default"."prices_by_year_view" TO default.prices_by_year_dest\n(\n    "price" UInt32,\n    "date" Date,\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String)\n)\nAS SELECT\n    "price",\n    "date",\n    "addr1",\n    "addr2",\n    "street",\n    "town",\n    "district",\n    "county"\nFROM "default"."uk_price_paid"
+CREATE TABLE "default"."uk_prices_aggs_dest"\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction("min", UInt32),\n    "max_price" SimpleAggregateFunction("max", UInt32),\n    "volume" AggregateFunction("count", UInt32),\n    "avg_price" AggregateFunction("avg", UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY "month"\nORDER BY "month"\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW "default"."uk_prices_aggs_view" TO default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction("min", UInt32),\n    "max_price" SimpleAggregateFunction("max", UInt32),\n    "volume" AggregateFunction("count", UInt32),\n    "avg_price" AggregateFunction("avg", UInt32)\n)\nAS WITH toStartOfMonth("date") AS "month"\nSELECT\n    "month",\n    minSimpleState("price") AS "min_price",\n    maxSimpleState("price") AS "max_price",\n    countState("price") AS "volume",\n    avgState("price") AS "avg_price"\nFROM "default"."uk_price_paid"\nGROUP BY "month"
+CREATE DICTIONARY "default"."uk_mortgage_rates_dict"\n(\n    "date" DateTime64,\n    "variable" Decimal32(2),\n    "fixed" Decimal32(2),\n    "bank" Decimal32(2)\n)\nPRIMARY KEY "date"\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: user_display & DoubleQuotes
+CREATE TABLE default.uk_price_paid\n(\n    "Table" String,\n    "Engine" String,\n    price UInt32,\n    "date" Date,\n    postcode1 LowCardinality(String),\n    postcode2 LowCardinality(String),\n    "type" Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    is_new UInt8,\n    duration Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    locality LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            "date",\n            price\n        ORDER BY \n            town,\n            "date"\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, "date")\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    price UInt32,\n    "date" Date,\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String)\n)\nAS SELECT\n    price,\n    "date",\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    "month" Date,\n    min_price SimpleAggregateFunction("min", UInt32),\n    max_price SimpleAggregateFunction("max", UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY "month"\nORDER BY "month"\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    "month" Date,\n    min_price SimpleAggregateFunction("min", UInt32),\n    max_price SimpleAggregateFunction("max", UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth("date") AS "month"\nSELECT\n    "month",\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY "month"
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    "date" DateTime64,\n    variable Decimal32(2),\n    fixed Decimal32(2),\n    bank Decimal32(2)\n)\nPRIMARY KEY "date"\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: when_necessary & DoubleQuotes
+CREATE TABLE default.uk_price_paid\n(\n    "Table" String,\n    "Engine" String,\n    "price" UInt32,\n    "date" Date,\n    "postcode1" LowCardinality(String),\n    "postcode2" LowCardinality(String),\n    "type" Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    "is_new" UInt8,\n    "duration" Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "locality" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    "price" UInt32,\n    "date" Date,\n    "addr1" String,\n    "addr2" String,\n    "street" LowCardinality(String),\n    "town" LowCardinality(String),\n    "district" LowCardinality(String),\n    "county" LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction(min, UInt32),\n    "max_price" SimpleAggregateFunction(max, UInt32),\n    "volume" AggregateFunction(count, UInt32),\n    "avg_price" AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    "month" Date,\n    "min_price" SimpleAggregateFunction(min, UInt32),\n    "max_price" SimpleAggregateFunction(max, UInt32),\n    "volume" AggregateFunction(count, UInt32),\n    "avg_price" AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    "date" DateTime64,\n    "variable" Decimal32(2),\n    "fixed" Decimal32(2),\n    "bank" Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: always & BackticksMySQL
+CREATE TABLE `default`.`uk_price_paid`\n(\n    `Table` String,\n    `Engine` String,\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX `county_index` `county` TYPE set(10) GRANULARITY 1,\n    PROJECTION `town_date_projection`\n    (\n        SELECT \n            `town`,\n            `date`,\n            `price`\n        ORDER BY \n            `town`,\n            `date`\n    ),\n    PROJECTION `handy_aggs_projection`\n    (\n        SELECT \n            avg(`price`),\n            max(`price`),\n            sum(`price`)\n        GROUP BY `town`\n    )\n)\nENGINE = MergeTree\nORDER BY (`postcode1`, `postcode2`, `date`)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW `default`.`prices_by_year_view` TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    `price`,\n    `date`,\n    `addr1`,\n    `addr2`,\n    `street`,\n    `town`,\n    `district`,\n    `county`\nFROM `default`.`uk_price_paid`
+CREATE TABLE `default`.`uk_prices_aggs_dest`\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW `default`.`uk_prices_aggs_view` TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(`min`, UInt32),\n    `max_price` SimpleAggregateFunction(`max`, UInt32),\n    `volume` AggregateFunction(`count`, UInt32),\n    `avg_price` AggregateFunction(`avg`, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(`price`) AS `min_price`,\n    maxSimpleState(`price`) AS `max_price`,\n    countState(`price`) AS `volume`,\n    avgState(`price`) AS `avg_price`\nFROM `default`.`uk_price_paid`\nGROUP BY `month`
+CREATE DICTIONARY `default`.`uk_mortgage_rates_dict`\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: user_display & BackticksMySQL
+CREATE TABLE default.uk_price_paid\n(\n    `Table` String,\n    `Engine` String,\n    price UInt32,\n    `date` Date,\n    postcode1 LowCardinality(String),\n    postcode2 LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    is_new UInt8,\n    duration Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    locality LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            `date`,\n            price\n        ORDER BY \n            town,\n            `date`\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, `date`)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    price UInt32,\n    `date` Date,\n    addr1 String,\n    addr2 String,\n    street LowCardinality(String),\n    town LowCardinality(String),\n    district LowCardinality(String),\n    county LowCardinality(String)\n)\nAS SELECT\n    price,\n    `date`,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    min_price SimpleAggregateFunction(`min`, UInt32),\n    max_price SimpleAggregateFunction(`max`, UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY `month`\nORDER BY `month`\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    min_price SimpleAggregateFunction(`min`, UInt32),\n    max_price SimpleAggregateFunction(`max`, UInt32),\n    volume AggregateFunction(count, UInt32),\n    avg_price AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(`date`) AS `month`\nSELECT\n    `month`,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY `month`
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    variable Decimal32(2),\n    fixed Decimal32(2),\n    bank Decimal32(2)\n)\nPRIMARY KEY `date`\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())
+Settings: when_necessary & BackticksMySQL
+CREATE TABLE default.uk_price_paid\n(\n    `Table` String,\n    `Engine` String,\n    `price` UInt32,\n    `date` Date,\n    `postcode1` LowCardinality(String),\n    `postcode2` LowCardinality(String),\n    `type` Enum8(\'other\' = 0, \'terraced\' = 1, \'semi-detached\' = 2, \'detached\' = 3, \'flat\' = 4),\n    `is_new` UInt8,\n    `duration` Enum8(\'unknown\' = 0, \'freehold\' = 1, \'leasehold\' = 2),\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `locality` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String),\n    INDEX county_index county TYPE set(10) GRANULARITY 1,\n    PROJECTION town_date_projection\n    (\n        SELECT \n            town,\n            date,\n            price\n        ORDER BY \n            town,\n            date\n    ),\n    PROJECTION handy_aggs_projection\n    (\n        SELECT \n            avg(price),\n            max(price),\n            sum(price)\n        GROUP BY town\n    )\n)\nENGINE = MergeTree\nORDER BY (postcode1, postcode2, date)\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.prices_by_year_view TO default.prices_by_year_dest\n(\n    `price` UInt32,\n    `date` Date,\n    `addr1` String,\n    `addr2` String,\n    `street` LowCardinality(String),\n    `town` LowCardinality(String),\n    `district` LowCardinality(String),\n    `county` LowCardinality(String)\n)\nAS SELECT\n    price,\n    date,\n    addr1,\n    addr2,\n    street,\n    town,\n    district,\n    county\nFROM default.uk_price_paid
+CREATE TABLE default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nENGINE = AggregatingMergeTree\nPRIMARY KEY month\nORDER BY month\nSETTINGS index_granularity = 8192
+CREATE MATERIALIZED VIEW default.uk_prices_aggs_view TO default.uk_prices_aggs_dest\n(\n    `month` Date,\n    `min_price` SimpleAggregateFunction(min, UInt32),\n    `max_price` SimpleAggregateFunction(max, UInt32),\n    `volume` AggregateFunction(count, UInt32),\n    `avg_price` AggregateFunction(avg, UInt32)\n)\nAS WITH toStartOfMonth(date) AS month\nSELECT\n    month,\n    minSimpleState(price) AS min_price,\n    maxSimpleState(price) AS max_price,\n    countState(price) AS volume,\n    avgState(price) AS avg_price\nFROM default.uk_price_paid\nGROUP BY month
+CREATE DICTIONARY default.uk_mortgage_rates_dict\n(\n    `date` DateTime64,\n    `variable` Decimal32(2),\n    `fixed` Decimal32(2),\n    `bank` Decimal32(2)\n)\nPRIMARY KEY date\nSOURCE(CLICKHOUSE(TABLE \'uk_mortgage_rates\'))\nLIFETIME(MIN 0 MAX 2628000000)\nLAYOUT(COMPLEX_KEY_HASHED())

tests/queries/0_stateless/03230_show_create_query_identifier_quoting_style.sql

@@ -0,0 +1,388 @@
+DROP DICTIONARY IF EXISTS uk_mortgage_rates_dict;
+DROP TABLE IF EXISTS uk_mortgage_rates;
+DROP VIEW IF EXISTS uk_prices_aggs_view;
+DROP TABLE IF EXISTS uk_prices_aggs_dest;
+DROP VIEW IF EXISTS prices_by_year_view;
+DROP TABLE IF EXISTS prices_by_year_dest;
+DROP TABLE IF EXISTS uk_price_paid;
+
+-- Create tables, views, dictionaries
+
+CREATE TABLE uk_price_paid
+(
+    Table String,
+    Engine String,
+    price UInt32,
+    date Date,
+    postcode1 LowCardinality(String),
+    postcode2 LowCardinality(String),
+    type Enum('terraced' = 1, 'semi-detached' = 2, 'detached' = 3, 'flat' = 4, 'other' = 0),
+    is_new UInt8,
+    duration Enum('freehold' = 1, 'leasehold' = 2, 'unknown' = 0),
+    addr1 String,
+    addr2 String,
+    street LowCardinality(String),
+    locality LowCardinality(String),
+    town LowCardinality(String),
+    district LowCardinality(String),
+    county LowCardinality(String),
+    INDEX county_index county TYPE set(10) GRANULARITY 1,
+    PROJECTION town_date_projection
+    (
+        SELECT 
+            town,
+            date,
+            price
+        ORDER BY 
+            town,
+            date
+    ),
+    PROJECTION handy_aggs_projection
+    (
+        SELECT 
+            avg(price),
+            max(price),
+            sum(price)
+        GROUP BY town
+    )
+)
+ENGINE = MergeTree
+ORDER BY (postcode1, postcode2, date);
+
+CREATE TABLE prices_by_year_dest (
+    Table String,
+    Engine String,
+    price UInt32,
+    date Date,
+    addr1 String,
+    addr2 String,
+    street LowCardinality(String),
+    town LowCardinality(String),
+    district LowCardinality(String),
+    county LowCardinality(String)
+)
+ENGINE = MergeTree
+PRIMARY KEY (town, date)
+PARTITION BY toYear(date);
+
+CREATE MATERIALIZED VIEW prices_by_year_view
+TO prices_by_year_dest
+AS
+    SELECT
+        price,
+        date,
+        addr1,
+        addr2,
+        street,
+        town,
+        district,
+        county
+    FROM uk_price_paid;
+
+CREATE TABLE uk_prices_aggs_dest (
+    month Date,
+    min_price SimpleAggregateFunction(min, UInt32),
+    max_price SimpleAggregateFunction(max, UInt32),
+    volume AggregateFunction(count, UInt32),
+    avg_price AggregateFunction(avg, UInt32)
+)
+ENGINE = AggregatingMergeTree
+PRIMARY KEY month;
+
+CREATE MATERIALIZED VIEW uk_prices_aggs_view
+TO uk_prices_aggs_dest
+AS
+    WITH
+        toStartOfMonth(date) AS month
+    SELECT
+        month,
+        minSimpleState(price) AS min_price,
+        maxSimpleState(price) AS max_price,
+        countState(price) AS volume,
+        avgState(price) AS avg_price
+    FROM uk_price_paid
+    GROUP BY month;
+
+CREATE TABLE uk_mortgage_rates (
+    date DateTime64,
+    variable Decimal32(2),
+    fixed Decimal32(2),
+    bank Decimal32(2)
+)
+ENGINE Memory();
+
+INSERT INTO uk_mortgage_rates VALUES ('2004-02-29', 5.02, 4.9, 4);
+INSERT INTO uk_mortgage_rates VALUES ('2004-03-31', 5.11, 4.91, 4);
+
+CREATE DICTIONARY uk_mortgage_rates_dict (
+    date DateTime64,
+    variable Decimal32(2),
+    fixed Decimal32(2),
+    bank Decimal32(2)
+)
+PRIMARY KEY date
+SOURCE(
+  CLICKHOUSE(TABLE 'uk_mortgage_rates')
+)
+LAYOUT(COMPLEX_KEY_HASHED())
+LIFETIME(2628000000);
+
+
+-- Show tables, views, dictionaries with default settings
+SELECT('Settings: default');
+SHOW CREATE TABLE uk_price_paid;
+SHOW CREATE VIEW prices_by_year_view;
+SHOW CREATE uk_prices_aggs_dest;
+SHOW CREATE VIEW uk_prices_aggs_view;
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict;
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='always', show_create_query_identifier_quoting_style='Backticks'
+SELECT('Settings: always & Backticks');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='Backticks';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='user_display', show_create_query_identifier_quoting_style='Backticks'
+SELECT('Settings: user_display & Backticks');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='Backticks';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='when_necessary', show_create_query_identifier_quoting_style='Backticks'
+SELECT('Settings: when_necessary & Backticks');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='Backticks';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='Backticks';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='always', show_create_query_identifier_quoting_style='DoubleQuotes'
+SELECT('Settings: always & DoubleQuotes');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='user_display', show_create_query_identifier_quoting_style='DoubleQuotes'
+SELECT('Settings: user_display & DoubleQuotes');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='when_necessary', show_create_query_identifier_quoting_style='DoubleQuotes'
+SELECT('Settings: when_necessary & DoubleQuotes');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='DoubleQuotes';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='always', show_create_query_identifier_quoting_style='BackticksMySQL'
+SELECT('Settings: always & BackticksMySQL');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='always',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='user_display', show_create_query_identifier_quoting_style='BackticksMySQL'
+SELECT('Settings: user_display & BackticksMySQL');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='user_display',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+-- Show tables, views, dictionaries with show_create_query_identifier_quoting_rule='when_necessary', show_create_query_identifier_quoting_style='BackticksMySQL'
+SELECT('Settings: when_necessary & BackticksMySQL');
+SHOW CREATE TABLE uk_price_paid
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW prices_by_year_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE uk_prices_aggs_dest
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE VIEW uk_prices_aggs_view
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+SHOW CREATE DICTIONARY uk_mortgage_rates_dict
+SETTINGS
+    show_create_query_identifier_quoting_rule='when_necessary',
+    show_create_query_identifier_quoting_style='BackticksMySQL';
+
+DROP DICTIONARY uk_mortgage_rates_dict;
+DROP TABLE uk_mortgage_rates;
+DROP VIEW uk_prices_aggs_view;
+DROP TABLE uk_prices_aggs_dest;
+DROP VIEW prices_by_year_view;
+DROP TABLE prices_by_year_dest;
+DROP TABLE uk_price_paid;

utils/check-style/aspell-ignore/en/aspell-dict.txt

@@ -3036,3 +3036,4 @@ znode
 znodes
 zookeeperSessionUptime
 zstd
+postgres