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38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
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/*
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* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibSQL/AST/AST.h>
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#include <LibSQL/Database.h>
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#include <LibSQL/Meta.h>
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#include <LibSQL/Row.h>
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namespace SQL::AST {
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RefPtr<SQLResult> Select::execute(ExecutionContext& context) const
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{
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if (table_or_subquery_list().size() == 1 && table_or_subquery_list()[0].is_table()) {
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if (result_column_list().size() == 1 && result_column_list()[0].type() == ResultType::All) {
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auto table = context.database->get_table(table_or_subquery_list()[0].schema_name(), table_or_subquery_list()[0].table_name());
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if (!table) {
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return SQLResult::construct(SQL::SQLCommand::Select, SQL::SQLErrorCode::TableDoesNotExist, table_or_subquery_list()[0].table_name());
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}
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NonnullRefPtr<TupleDescriptor> descriptor = table->to_tuple_descriptor();
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context.result = SQLResult::construct();
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for (auto& row : context.database->select_all(*table)) {
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Tuple tuple(descriptor);
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for (auto ix = 0u; ix < descriptor->size(); ix++) {
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tuple[ix] = row[ix];
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}
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context.result->append(tuple);
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}
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return context.result;
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}
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}
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return SQLResult::construct();
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}
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}
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