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Merge pull request #47539 from ClickHouse/interpolate-const-fix

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Support constants in INTERPOLATE clause (new analyzer)
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Maksim Kita 2023-03-15 22:06:49 +03:00 committed by GitHub
commit 5329041479
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1 changed files with 20 additions and 1 deletions
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21
src/Analyzer/Passes/QueryAnalysisPass.cpp
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@ -5727,8 +5727,27 @@ void QueryAnalyzer::resolveInterpolateColumnsNodeList(QueryTreeNodePtr & interpo
{
auto & interpolate_node_typed = interpolate_node->as<InterpolateNode &>();
auto * column_to_interpolate = interpolate_node_typed.getExpression()->as<IdentifierNode>();
if (!column_to_interpolate)
throw Exception(ErrorCodes::LOGICAL_ERROR, "INTERPOLATE can work only for indentifiers, but {} is found",
interpolate_node_typed.getExpression()->formatASTForErrorMessage());
auto column_to_interpolate_name = column_to_interpolate->getIdentifier().getFullName();
resolveExpressionNode(interpolate_node_typed.getExpression(), scope, false /*allow_lambda_expression*/, false /*allow_table_expression*/);
resolveExpressionNode(interpolate_node_typed.getInterpolateExpression(), scope, false /*allow_lambda_expression*/, false /*allow_table_expression*/);
bool is_column_constant = interpolate_node_typed.getExpression()->getNodeType() == QueryTreeNodeType::CONSTANT;
auto & interpolation_to_resolve = interpolate_node_typed.getInterpolateExpression();
IdentifierResolveScope interpolate_scope(interpolation_to_resolve, &scope /*parent_scope*/);
auto fake_column_node = std::make_shared<ColumnNode>(NameAndTypePair(column_to_interpolate_name, interpolate_node_typed.getExpression()->getResultType()), interpolate_node_typed.getExpression());
if (is_column_constant)
interpolate_scope.expression_argument_name_to_node.emplace(column_to_interpolate_name, fake_column_node);
resolveExpressionNode(interpolation_to_resolve, interpolate_scope, false /*allow_lambda_expression*/, false /*allow_table_expression*/);
if (is_column_constant)
interpolation_to_resolve = interpolation_to_resolve->cloneAndReplace(fake_column_node, interpolate_node_typed.getExpression());
}
}