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Fix style and add low-level check

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This commit is contained in:
alesapin 2021-02-25 17:43:58 +03:00
parent 5c6c318737
commit 653d962cdd
2 changed files with 4 additions and 1 deletions
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2
src/Storages/MergeTree/MergeTreeData.h
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@ -520,7 +520,7 @@ public:
void checkAlterIsPossible(const AlterCommands & commands, const Settings & settings) const override; void checkAlterIsPossible(const AlterCommands & commands, const Settings & settings) const override;
/// Checks if the Mutation can be performed. /// Checks if the Mutation can be performed.
/// (currenly no additional checks: always ok) /// (currently no additional checks: always ok)
void checkMutationIsPossible(const MutationCommands & commands, const Settings & settings) const override; void checkMutationIsPossible(const MutationCommands & commands, const Settings & settings) const override;
/// Checks that partition name in all commands is valid /// Checks that partition name in all commands is valid

3
src/Storages/StorageView.cpp
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@ -105,6 +105,9 @@ void StorageView::read(
static ASTTableExpression * getFirstTableExpression(ASTSelectQuery & select_query) static ASTTableExpression * getFirstTableExpression(ASTSelectQuery & select_query)
{ {
if (!select_query.tables() || select_query.tables()->children.empty())
throw Exception("Logical error: no table expression in view select AST", ErrorCodes::LOGICAL_ERROR);
auto * select_element = select_query.tables()->children[0]->as<ASTTablesInSelectQueryElement>(); auto * select_element = select_query.tables()->children[0]->as<ASTTablesInSelectQueryElement>();
if (!select_element->table_expression) if (!select_element->table_expression)