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67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
#include <Analyzer/ConstantNode.h>
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#include <Common/FieldVisitorToString.h>
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#include <Common/SipHash.h>
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#include <IO/WriteBuffer.h>
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#include <IO/WriteHelpers.h>
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#include <IO/Operators.h>
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#include <DataTypes/FieldToDataType.h>
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#include <Parsers/ASTLiteral.h>
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namespace DB
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{
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ConstantNode::ConstantNode(Field value_, DataTypePtr value_data_type_)
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: value(std::move(value_))
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, value_string_dump(applyVisitor(FieldVisitorToString(), value))
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, type(std::move(value_data_type_))
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{}
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ConstantNode::ConstantNode(Field value_)
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: value(std::move(value_))
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, value_string_dump(applyVisitor(FieldVisitorToString(), value))
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, type(applyVisitor(FieldToDataType(), value))
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{}
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void ConstantNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const
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{
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buffer << std::string(indent, ' ') << "CONSTANT id: " << format_state.getNodeId(this);
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if (hasAlias())
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buffer << ", alias: " << getAlias();
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buffer << ", value: " << value.dump();
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buffer << ", result_type: " << type->getName();
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}
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bool ConstantNode::isEqualImpl(const IQueryTreeNode & rhs) const
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{
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const auto & rhs_typed = assert_cast<const ConstantNode &>(rhs);
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return value == rhs_typed.value && value_string_dump == rhs_typed.value_string_dump && type->equals(*rhs_typed.type);
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}
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void ConstantNode::updateTreeHashImpl(HashState & hash_state) const
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{
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auto type_name = type->getName();
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hash_state.update(type_name.size());
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hash_state.update(type_name);
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hash_state.update(value_string_dump.size());
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hash_state.update(value_string_dump);
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}
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ASTPtr ConstantNode::toASTImpl() const
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{
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return std::make_shared<ASTLiteral>(value);
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}
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QueryTreeNodePtr ConstantNode::cloneImpl() const
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{
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return std::make_shared<ConstantNode>(value, type);
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}
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}
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