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86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
#include <Interpreters/StorageID.h>
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#include <Parsers/ASTQueryWithTableAndOutput.h>
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#include <Parsers/ASTIdentifier.h>
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#include <Common/quoteString.h>
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#include <IO/WriteHelpers.h>
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#include <Interpreters/DatabaseAndTableWithAlias.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int LOGICAL_ERROR;
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extern const int UNKNOWN_DATABASE;
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}
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StorageID::StorageID(const ASTQueryWithTableAndOutput & query)
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{
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database_name = query.database;
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table_name = query.table;
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uuid = query.uuid;
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assertNotEmpty();
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}
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StorageID::StorageID(const ASTIdentifier & table_identifier_node)
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{
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DatabaseAndTableWithAlias database_table(table_identifier_node);
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database_name = database_table.database;
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table_name = database_table.table;
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uuid = database_table.uuid;
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assertNotEmpty();
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}
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StorageID::StorageID(const ASTPtr & node)
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{
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if (auto identifier = dynamic_cast<const ASTIdentifier *>(node.get()))
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*this = StorageID(*identifier);
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else if (auto simple_query = dynamic_cast<const ASTQueryWithTableAndOutput *>(node.get()))
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*this = StorageID(*simple_query);
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else
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throw Exception("Unexpected AST", ErrorCodes::LOGICAL_ERROR);
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}
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String StorageID::getTableName() const
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{
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assertNotEmpty();
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return table_name;
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}
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String StorageID::getDatabaseName() const
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{
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assertNotEmpty();
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if (database_name.empty())
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throw Exception("Database name is empty", ErrorCodes::UNKNOWN_DATABASE);
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return database_name;
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}
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String StorageID::getNameForLogs() const
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{
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assertNotEmpty();
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return (database_name.empty() ? "" : backQuoteIfNeed(database_name) + ".") + backQuoteIfNeed(table_name)
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+ (hasUUID() ? " (UUID " + toString(uuid) + ")" : "");
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}
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bool StorageID::operator<(const StorageID & rhs) const
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{
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assertNotEmpty();
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/// It's needed for ViewDependencies
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if (!hasUUID() && !rhs.hasUUID())
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/// If both IDs don't have UUID, compare them like pair of strings
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return std::tie(database_name, table_name) < std::tie(rhs.database_name, rhs.table_name);
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else if (hasUUID() && rhs.hasUUID())
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/// If both IDs have UUID, compare UUIDs and ignore database and table name
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return uuid < rhs.uuid;
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else
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/// All IDs without UUID are less, then all IDs with UUID
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return !hasUUID();
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}
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String StorageID::getFullTableName() const
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{
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return backQuoteIfNeed(getDatabaseName()) + "." + backQuoteIfNeed(table_name);
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}
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}
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