#pragma once #include #include #include namespace DB { struct ASTTableExpression; class ASTSelectQuery; using ASTTableExprConstPtrs = std::vector; NameSet removeDuplicateColumns(NamesAndTypesList & columns); ASTTableExprConstPtrs getTableExpressions(const ASTSelectQuery & select_query); const ASTTableExpression * getTableExpression(const ASTSelectQuery & select, size_t table_number); ASTPtr extractTableExpression(const ASTSelectQuery & select, size_t table_number); TablesWithColumns getDatabaseAndTablesWithColumns( const ASTTableExprConstPtrs & table_expressions, ContextPtr context, bool include_alias_cols, bool include_materialized_cols, bool is_create_parameterized_view = false); }