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41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
#pragma once
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#include <Parsers/IAST_fwd.h>
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#include <Parsers/ASTFunction.h>
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#include <Parsers/ASTIdentifier.h>
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#include <Interpreters/InDepthNodeVisitor.h>
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#include <Interpreters/DatabaseAndTableWithAlias.h>
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namespace DB
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{
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class Context;
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struct ExpressionInfoMatcher
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{
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struct Data
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{
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const Context & context;
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const std::vector<TableWithColumnNames> & tables;
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bool is_array_join = false;
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bool is_stateful_function = false;
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bool is_aggregate_function = false;
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std::unordered_set<size_t> unique_reference_tables_pos = {};
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};
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static void visit(const ASTPtr & ast, Data & data);
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static bool needChildVisit(const ASTPtr & node, const ASTPtr &);
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static void visit(const ASTFunction & ast_function, const ASTPtr &, Data & data);
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static void visit(const ASTIdentifier & identifier, const ASTPtr &, Data & data);
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};
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using ExpressionInfoVisitor = ConstInDepthNodeVisitor<ExpressionInfoMatcher, true>;
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bool hasStatefulFunction(const ASTPtr & node, const Context & context);
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}
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