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fix potential segfault in cloning ASTDictionary

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This commit is contained in:
Alexander Kuzmenkov 2020-07-31 18:39:45 +03:00
parent 429d0fdbe4
commit 365f914802
1 changed files with 6 additions and 6 deletions
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12
src/Parsers/ASTDictionary.h
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@ -82,19 +82,19 @@ class ASTDictionary : public IAST
{
public:
/// Dictionary keys -- one or more
ASTExpressionList * primary_key;
ASTExpressionList * primary_key = nullptr;
/// Dictionary external source, doesn't have own AST, because
/// source parameters absolutely different for different sources
ASTFunctionWithKeyValueArguments * source;
ASTFunctionWithKeyValueArguments * source = nullptr;
/// Lifetime of dictionary (required part)
ASTDictionaryLifetime * lifetime;
ASTDictionaryLifetime * lifetime = nullptr;
/// Layout of dictionary (required part)
ASTDictionaryLayout * layout;
ASTDictionaryLayout * layout = nullptr;
/// Range for dictionary (only for range-hashed dictionaries)
ASTDictionaryRange * range;
ASTDictionaryRange * range = nullptr;
/// Settings for dictionary (optionally)
ASTDictionarySettings * dict_settings;
ASTDictionarySettings * dict_settings = nullptr;
String getID(char) const override { return "Dictionary definition"; }