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41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/*
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* Copyright (c) 2021, Mahmoud Mandour <ma.mandourr@gmail.com>
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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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Result DescribeTable::execute(ExecutionContext& context) const
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{
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auto schema_name = m_qualified_table_name->schema_name();
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auto table_name = m_qualified_table_name->table_name();
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auto table_def = TRY(context.database->get_table(schema_name, table_name));
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if (!table_def) {
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if (schema_name.is_empty())
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schema_name = "default"sv;
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return { SQLCommand::Describe, SQLErrorCode::TableDoesNotExist, String::formatted("{}.{}", schema_name, table_name) };
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}
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auto describe_table_def = MUST(context.database->get_table("master"sv, "internal_describe_table"sv));
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auto descriptor = describe_table_def->to_tuple_descriptor();
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Result result { SQLCommand::Describe };
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for (auto& column : table_def->columns()) {
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Tuple tuple(descriptor);
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tuple[0] = column.name();
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tuple[1] = SQLType_name(column.type());
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result.insert(tuple, Tuple {});
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}
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return result;
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}
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}
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