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Merge pull request #29667 from ClickHouse/clickhouse-obfuscator-embedded-dictionaries

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Fix issue: clickhouse-format --obfuscate cannot process queries with embedded dictionaries
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alexey-milovidov 2021-10-03 05:57:03 +03:00 committed by GitHub
commit 59fdfd18db
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5 changed files with 20 additions and 5 deletions
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6
programs/format/Format.cpp
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@ -110,10 +110,6 @@ int mainEntryClickHouseFormat(int argc, char ** argv)
hash_func.update(options["seed"].as<std::string>());
}
SharedContextHolder shared_context = Context::createShared();
auto context = Context::createGlobal(shared_context.get());
context->makeGlobalContext();
registerFunctions();
registerAggregateFunctions();
registerTableFunctions();
@ -131,7 +127,7 @@ int mainEntryClickHouseFormat(int argc, char ** argv)
{
std::string what(name);
return FunctionFactory::instance().tryGet(what, context) != nullptr
return FunctionFactory::instance().has(what)
|| AggregateFunctionFactory::instance().isAggregateFunctionName(what)
|| TableFunctionFactory::instance().isTableFunctionName(what)
|| additional_names.count(what);

9
src/Functions/FunctionFactory.cpp
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@ -87,6 +87,15 @@ FunctionOverloadResolverPtr FunctionFactory::get(
return getImpl(name, context);
}
bool FunctionFactory::has(const std::string & name) const
{
String canonical_name = getAliasToOrName(name);
if (functions.contains(canonical_name))
return true;
canonical_name = Poco::toLower(canonical_name);
return case_insensitive_functions.contains(canonical_name);
}
FunctionOverloadResolverPtr FunctionFactory::tryGetImpl(
const std::string & name_param,
ContextPtr context) const

2
src/Functions/FunctionFactory.h
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@ -43,6 +43,8 @@ public:
/// This function is used by YQL - internal Yandex product that depends on ClickHouse by source code.
std::vector<std::string> getAllNames() const;
bool has(const std::string & name) const;
/// Throws an exception if not found.
FunctionOverloadResolverPtr get(const std::string & name, ContextPtr context) const;

1
tests/queries/0_stateless/02043_query_obfuscator_embedded_dictionaries.reference Normal file
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@ -0,0 +1 @@
SELECT regionToName(203), regionToCountry(203)

7
tests/queries/0_stateless/02043_query_obfuscator_embedded_dictionaries.sh Executable file
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@ -0,0 +1,7 @@
#!/usr/bin/env bash
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=../shell_config.sh
. "$CURDIR"/../shell_config.sh
$CLICKHOUSE_FORMAT --seed Hello --obfuscate <<< "SELECT regionToName(213), regionToCountry(213)"