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#include <iomanip>
#include <Parsers/ASTIdentifier.h>
#include <Parsers/ASTInsertQuery.h>
#include <Parsers/ASTFunction.h>
#include <Parsers/ASTLiteral.h>
#include <Common/quoteString.h>
#include <IO/WriteHelpers.h>
#include <IO/Operators.h>
namespace DB
{
namespace ErrorCodes
{
extern const int INVALID_USAGE_OF_INPUT;
}
String ASTInsertQuery::getDatabase() const
{
String name;
tryGetIdentifierNameInto(database, name);
return name;
}
String ASTInsertQuery::getTable() const
{
String name;
tryGetIdentifierNameInto(table, name);
return name;
}
void ASTInsertQuery::setDatabase(const String & name)
{
if (name.empty())
database.reset();
else
database = std::make_shared<ASTIdentifier>(name);
}
void ASTInsertQuery::setTable(const String & name)
{
if (name.empty())
table.reset();
else
table = std::make_shared<ASTIdentifier>(name);
}
void ASTInsertQuery::formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
frame.need_parens = false;
settings.ostr << (settings.hilite ? hilite_keyword : "") << "INSERT INTO ";
if (table_function)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << "FUNCTION ";
table_function->formatImpl(settings, state, frame);
if (partition_by)
{
settings.ostr << " PARTITION BY ";
partition_by->formatImpl(settings, state, frame);
}
}
else if (table_id)
{
settings.ostr << (settings.hilite ? hilite_none : "")
<< (!table_id.database_name.empty() ? backQuoteIfNeed(table_id.database_name) + "." : "") << backQuoteIfNeed(table_id.table_name);
}
else
{
settings.ostr << (settings.hilite ? hilite_none : "")
<< (database ? backQuoteIfNeed(getDatabase()) + "." : "") << backQuoteIfNeed(getTable());
}
if (columns)
{
settings.ostr << " (";
columns->formatImpl(settings, state, frame);
settings.ostr << ")";
}
if (infile)
{
settings.ostr
<< (settings.hilite ? hilite_keyword : "")
<< " FROM INFILE "
<< (settings.hilite ? hilite_none : "")
<< quoteString(infile->as<ASTLiteral &>().value.safeGet<std::string>());
if (compression)
settings.ostr
<< (settings.hilite ? hilite_keyword : "")
<< " COMPRESSION "
<< (settings.hilite ? hilite_none : "")
<< quoteString(compression->as<ASTLiteral &>().value.safeGet<std::string>());
}
if (settings_ast)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << settings.nl_or_ws << "SETTINGS " << (settings.hilite ? hilite_none : "");
settings_ast->formatImpl(settings, state, frame);
}
/// Compatibility for INSERT without SETTINGS to format in oneline, i.e.:
///
/// INSERT INTO foo VALUES
///
/// But
///
/// INSERT INTO foo
/// SETTINGS max_threads=1
/// VALUES
///
char delim = settings_ast ? settings.nl_or_ws : ' ';
if (select)
{
settings.ostr << delim;
select->formatImpl(settings, state, frame);
}
else if (watch)
{
settings.ostr << delim;
watch->formatImpl(settings, state, frame);
}
if (!select && !watch)
{
if (!format.empty())
{
settings.ostr << delim
<< (settings.hilite ? hilite_keyword : "") << "FORMAT " << (settings.hilite ? hilite_none : "") << format;
}
else if (!infile)
{
settings.ostr << delim
<< (settings.hilite ? hilite_keyword : "") << "VALUES" << (settings.hilite ? hilite_none : "");
}
}
}
void ASTInsertQuery::updateTreeHashImpl(SipHash & hash_state) const
{
hash_state.update(table_id.database_name);
hash_state.update(table_id.table_name);
hash_state.update(table_id.uuid);
hash_state.update(format);
IAST::updateTreeHashImpl(hash_state);
}
static void tryFindInputFunctionImpl(const ASTPtr & ast, ASTPtr & input_function)
{
if (!ast)
return;
for (const auto & child : ast->children)
tryFindInputFunctionImpl(child, input_function);
if (const auto * table_function_ast = ast->as<ASTFunction>())
{
if (table_function_ast->name == "input")
{
if (input_function)
throw Exception(ErrorCodes::INVALID_USAGE_OF_INPUT, "You can use 'input()' function only once per request.");
input_function = ast;
}
}
}
void ASTInsertQuery::tryFindInputFunction(ASTPtr & input_function) const
{
tryFindInputFunctionImpl(select, input_function);
}
}
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