ClickHouse/src/Parsers/ASTCreateQuery.cpp

451 lines
15 KiB
C++

#include <Parsers/ASTCreateQuery.h>
#include <Parsers/ASTExpressionList.h>
#include <Parsers/ASTFunction.h>
#include <Parsers/ASTSelectWithUnionQuery.h>
#include <Parsers/ASTSetQuery.h>
#include <Common/quoteString.h>
#include <Interpreters/StorageID.h>
#include <IO/Operators.h>
namespace DB
{
ASTPtr ASTStorage::clone() const
{
auto res = std::make_shared<ASTStorage>(*this);
res->children.clear();
if (engine)
res->set(res->engine, engine->clone());
if (partition_by)
res->set(res->partition_by, partition_by->clone());
if (primary_key)
res->set(res->primary_key, primary_key->clone());
if (order_by)
res->set(res->order_by, order_by->clone());
if (sample_by)
res->set(res->sample_by, sample_by->clone());
if (ttl_table)
res->set(res->ttl_table, ttl_table->clone());
if (settings)
res->set(res->settings, settings->clone());
return res;
}
void ASTStorage::formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const
{
if (engine)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "ENGINE" << (s.hilite ? hilite_none : "") << " = ";
engine->formatImpl(s, state, frame);
}
if (partition_by)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "PARTITION BY " << (s.hilite ? hilite_none : "");
partition_by->formatImpl(s, state, frame);
}
if (primary_key)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "PRIMARY KEY " << (s.hilite ? hilite_none : "");
primary_key->formatImpl(s, state, frame);
}
if (order_by)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "ORDER BY " << (s.hilite ? hilite_none : "");
order_by->formatImpl(s, state, frame);
}
if (sample_by)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "SAMPLE BY " << (s.hilite ? hilite_none : "");
sample_by->formatImpl(s, state, frame);
}
if (ttl_table)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "TTL " << (s.hilite ? hilite_none : "");
ttl_table->formatImpl(s, state, frame);
}
if (settings)
{
s.ostr << (s.hilite ? hilite_keyword : "") << s.nl_or_ws << "SETTINGS " << (s.hilite ? hilite_none : "");
settings->formatImpl(s, state, frame);
}
}
class ASTColumnsElement : public IAST
{
public:
String prefix;
IAST * elem;
String getID(char c) const override { return "ASTColumnsElement for " + elem->getID(c); }
ASTPtr clone() const override;
void formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const override;
};
ASTPtr ASTColumnsElement::clone() const
{
auto res = std::make_shared<ASTColumnsElement>();
res->prefix = prefix;
if (elem)
res->set(res->elem, elem->clone());
return res;
}
void ASTColumnsElement::formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const
{
if (!elem)
return;
if (prefix.empty())
{
elem->formatImpl(s, state, frame);
return;
}
s.ostr << (s.hilite ? hilite_keyword : "") << prefix << (s.hilite ? hilite_none : "");
s.ostr << ' ';
elem->formatImpl(s, state, frame);
}
ASTPtr ASTColumns::clone() const
{
auto res = std::make_shared<ASTColumns>();
if (columns)
res->set(res->columns, columns->clone());
if (indices)
res->set(res->indices, indices->clone());
if (constraints)
res->set(res->constraints, constraints->clone());
if (projections)
res->set(res->projections, projections->clone());
if (primary_key)
res->set(res->primary_key, primary_key->clone());
return res;
}
void ASTColumns::formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const
{
ASTExpressionList list;
if (columns)
{
for (const auto & column : columns->children)
{
auto elem = std::make_shared<ASTColumnsElement>();
elem->prefix = "";
elem->set(elem->elem, column->clone());
list.children.push_back(elem);
}
}
if (indices)
{
for (const auto & index : indices->children)
{
auto elem = std::make_shared<ASTColumnsElement>();
elem->prefix = "INDEX";
elem->set(elem->elem, index->clone());
list.children.push_back(elem);
}
}
if (constraints)
{
for (const auto & constraint : constraints->children)
{
auto elem = std::make_shared<ASTColumnsElement>();
elem->prefix = "CONSTRAINT";
elem->set(elem->elem, constraint->clone());
list.children.push_back(elem);
}
}
if (projections)
{
for (const auto & projection : projections->children)
{
auto elem = std::make_shared<ASTColumnsElement>();
elem->prefix = "PROJECTION";
elem->set(elem->elem, projection->clone());
list.children.push_back(elem);
}
}
if (!list.children.empty())
{
if (s.one_line)
list.formatImpl(s, state, frame);
else
list.formatImplMultiline(s, state, frame);
}
}
ASTPtr ASTCreateQuery::clone() const
{
auto res = std::make_shared<ASTCreateQuery>(*this);
res->children.clear();
if (columns_list)
res->set(res->columns_list, columns_list->clone());
if (storage)
res->set(res->storage, storage->clone());
if (select)
res->set(res->select, select->clone());
if (tables)
res->set(res->tables, tables->clone());
if (table_overrides)
res->set(res->table_overrides, table_overrides->clone());
if (dictionary)
{
assert(is_dictionary);
res->set(res->dictionary_attributes_list, dictionary_attributes_list->clone());
res->set(res->dictionary, dictionary->clone());
}
if (comment)
res->set(res->comment, comment->clone());
cloneOutputOptions(*res);
cloneTableOptions(*res);
return res;
}
void ASTCreateQuery::formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
frame.need_parens = false;
if (database && !table)
{
settings.ostr << (settings.hilite ? hilite_keyword : "")
<< (attach ? "ATTACH DATABASE " : "CREATE DATABASE ")
<< (if_not_exists ? "IF NOT EXISTS " : "")
<< (settings.hilite ? hilite_none : "")
<< backQuoteIfNeed(getDatabase());
if (uuid != UUIDHelpers::Nil)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " UUID " << (settings.hilite ? hilite_none : "")
<< quoteString(toString(uuid));
}
formatOnCluster(settings);
if (storage)
storage->formatImpl(settings, state, frame);
if (table_overrides)
{
settings.ostr << settings.nl_or_ws;
table_overrides->formatImpl(settings, state, frame);
}
if (comment)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << settings.nl_or_ws << "COMMENT " << (settings.hilite ? hilite_none : "");
comment->formatImpl(settings, state, frame);
}
return;
}
if (!is_dictionary)
{
String action = "CREATE";
if (attach)
action = "ATTACH";
else if (replace_view)
action = "CREATE OR REPLACE";
else if (replace_table && create_or_replace)
action = "CREATE OR REPLACE";
else if (replace_table)
action = "REPLACE";
String what = "TABLE";
if (is_ordinary_view)
what = "VIEW";
else if (is_materialized_view)
what = "MATERIALIZED VIEW";
else if (is_live_view)
what = "LIVE VIEW";
else if (is_window_view)
what = "WINDOW VIEW";
settings.ostr
<< (settings.hilite ? hilite_keyword : "")
<< action << " "
<< (temporary ? "TEMPORARY " : "")
<< what << " "
<< (if_not_exists ? "IF NOT EXISTS " : "")
<< (settings.hilite ? hilite_none : "")
<< (database ? backQuoteIfNeed(getDatabase()) + "." : "") << backQuoteIfNeed(getTable());
if (uuid != UUIDHelpers::Nil)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " UUID " << (settings.hilite ? hilite_none : "")
<< quoteString(toString(uuid));
assert(attach || !attach_from_path);
if (attach_from_path)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " FROM " << (settings.hilite ? hilite_none : "")
<< quoteString(*attach_from_path);
if (live_view_timeout)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WITH TIMEOUT " << (settings.hilite ? hilite_none : "")
<< *live_view_timeout;
if (live_view_periodic_refresh)
{
if (live_view_timeout)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " AND" << (settings.hilite ? hilite_none : "");
else
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WITH" << (settings.hilite ? hilite_none : "");
settings.ostr << (settings.hilite ? hilite_keyword : "") << " PERIODIC REFRESH " << (settings.hilite ? hilite_none : "")
<< *live_view_periodic_refresh;
}
formatOnCluster(settings);
}
else
{
String action = "CREATE";
if (attach)
action = "ATTACH";
else if (replace_table && create_or_replace)
action = "CREATE OR REPLACE";
else if (replace_table)
action = "REPLACE";
/// Always DICTIONARY
settings.ostr << (settings.hilite ? hilite_keyword : "") << action << " DICTIONARY "
<< (if_not_exists ? "IF NOT EXISTS " : "") << (settings.hilite ? hilite_none : "")
<< (database ? backQuoteIfNeed(getDatabase()) + "." : "") << backQuoteIfNeed(getTable());
if (uuid != UUIDHelpers::Nil)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " UUID " << (settings.hilite ? hilite_none : "")
<< quoteString(toString(uuid));
formatOnCluster(settings);
}
if (to_table_id)
{
assert((is_materialized_view || is_window_view) && to_inner_uuid == UUIDHelpers::Nil);
settings.ostr
<< (settings.hilite ? hilite_keyword : "") << " TO " << (settings.hilite ? hilite_none : "")
<< (!to_table_id.database_name.empty() ? backQuoteIfNeed(to_table_id.database_name) + "." : "")
<< backQuoteIfNeed(to_table_id.table_name);
}
if (to_inner_uuid != UUIDHelpers::Nil)
{
assert(is_materialized_view && !to_table_id);
settings.ostr << (settings.hilite ? hilite_keyword : "") << " TO INNER UUID " << (settings.hilite ? hilite_none : "")
<< quoteString(toString(to_inner_uuid));
}
if (!as_table.empty())
{
settings.ostr
<< (settings.hilite ? hilite_keyword : "") << " AS " << (settings.hilite ? hilite_none : "")
<< (!as_database.empty() ? backQuoteIfNeed(as_database) + "." : "") << backQuoteIfNeed(as_table);
}
if (as_table_function)
{
if (columns_list && !columns_list->empty())
{
frame.expression_list_always_start_on_new_line = true;
settings.ostr << (settings.one_line ? " (" : "\n(");
FormatStateStacked frame_nested = frame;
columns_list->formatImpl(settings, state, frame_nested);
settings.ostr << (settings.one_line ? ")" : "\n)");
frame.expression_list_always_start_on_new_line = false; //-V519
}
settings.ostr << (settings.hilite ? hilite_keyword : "") << " AS " << (settings.hilite ? hilite_none : "");
as_table_function->formatImpl(settings, state, frame);
}
frame.expression_list_always_start_on_new_line = true;
if (columns_list && !columns_list->empty() && !as_table_function)
{
settings.ostr << (settings.one_line ? " (" : "\n(");
FormatStateStacked frame_nested = frame;
columns_list->formatImpl(settings, state, frame_nested);
settings.ostr << (settings.one_line ? ")" : "\n)");
}
if (dictionary_attributes_list)
{
settings.ostr << (settings.one_line ? " (" : "\n(");
FormatStateStacked frame_nested = frame;
if (settings.one_line)
dictionary_attributes_list->formatImpl(settings, state, frame_nested);
else
dictionary_attributes_list->formatImplMultiline(settings, state, frame_nested);
settings.ostr << (settings.one_line ? ")" : "\n)");
}
frame.expression_list_always_start_on_new_line = false; //-V519
if (storage)
storage->formatImpl(settings, state, frame);
if (dictionary)
dictionary->formatImpl(settings, state, frame);
if (is_populate)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " POPULATE" << (settings.hilite ? hilite_none : "");
if (is_watermark_strictly_ascending)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WATERMARK STRICTLY_ASCENDING" << (settings.hilite ? hilite_none : "");
}
else if (is_watermark_ascending)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WATERMARK ASCENDING" << (settings.hilite ? hilite_none : "");
}
else if (is_watermark_bounded)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WATERMARK " << (settings.hilite ? hilite_none : "");
watermark_function->formatImpl(settings, state, frame);
}
if (allowed_lateness)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " ALLOWED_LATENESS " << (settings.hilite ? hilite_none : "");
lateness_function->formatImpl(settings, state, frame);
}
if (select)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " AS"
<< (comment ? "(" : "")
<< settings.nl_or_ws << (settings.hilite ? hilite_none : "");
select->formatImpl(settings, state, frame);
settings.ostr << (comment ? ")" : "");
}
if (tables)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " WITH " << (settings.hilite ? hilite_none : "");
tables->formatImpl(settings, state, frame);
}
if (comment)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << settings.nl_or_ws << "COMMENT " << (settings.hilite ? hilite_none : "");
comment->formatImpl(settings, state, frame);
}
}
}