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add clone() calls when copying ASTs from stored mutation commands (just in case) #4058

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This commit is contained in:
Alexey Zatelepin 2019-01-23 16:27:01 +03:00
parent da0f555484
commit b623d4302c
1 changed files with 2 additions and 2 deletions
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4
dbms/src/Interpreters/MutationsInterpreter.cpp
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@ -53,7 +53,7 @@ bool MutationsInterpreter::isStorageTouchedByMutations() const
select->select_expression_list->children.push_back(count_func);
if (commands.size() == 1)
select->where_expression = commands[0].predicate;
select->where_expression = commands[0].predicate->clone();
else
{
auto coalesced_predicates = std::make_shared<ASTFunction>();
@ -62,7 +62,7 @@ bool MutationsInterpreter::isStorageTouchedByMutations() const
coalesced_predicates->children.push_back(coalesced_predicates->arguments);
for (const MutationCommand & command : commands)
coalesced_predicates->arguments->children.push_back(command.predicate);
coalesced_predicates->arguments->children.push_back(command.predicate->clone());
select->where_expression = std::move(coalesced_predicates);
}