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VaclavT
2021-12-13 22:08:27 +01:00
parent 411f0fd48c
commit 7ae4ef53f9
12 changed files with 410 additions and 272 deletions
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30
usql_ddl.cpp
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@@ -9,7 +9,7 @@ namespace usql {
std::unique_ptr<Table> USql::execute_create_table(CreateTableNode &node) {
std::unique_ptr<Table> USql::execute_create_table(const CreateTableNode &node) {
check_table_not_exists(node.table_name);
Table table{node.table_name, node.cols_defs};
@@ -19,21 +19,23 @@ std::unique_ptr<Table> USql::execute_create_table(CreateTableNode &node) {
}
std::unique_ptr<Table> USql::execute_create_index(CreateIndexNode &node) {
std::unique_ptr<Table> USql::execute_create_index(const CreateIndexNode &node) {
Table *table_def = find_table(node.table_name); // throws exception if not found
ColDefNode col_def = table_def->get_column_def(node.column_name); // throws exception if not found
if (table_def->get_index(node.index_name) != nullptr) throw Exception("index already exists");
check_index_not_exists(node.index_name);
if (col_def.null) throw Exception("index on not null supported only");
if (table_def->get_index_for_column(node.column_name) != nullptr) throw Exception("column is already indexed");
IndexedDataType type;
if (col_def.type == ColumnType::integer_type) type = IndexedDataType::integer;
else if (col_def.type == ColumnType::varchar_type) type = IndexedDataType::string;
else throw Exception("creating index on unsupported type");
if (col_def.type == ColumnType::integer_type)
type = IndexedDataType::integer;
else if (col_def.type == ColumnType::varchar_type)
type = IndexedDataType::string;
else
throw Exception("creating index on unsupported type");
Index<IndexValue> i{node.index_name, node.column_name, type};
table_def->create_index(i);
table_def->create_index({node.index_name, node.column_name, type});
table_def->index_rows(node.index_name);
@@ -41,7 +43,7 @@ std::unique_ptr<Table> USql::execute_create_index(CreateIndexNode &node) {
}
std::unique_ptr<Table> USql::execute_create_table_as_table(CreateTableAsSelectNode &node) {
std::unique_ptr<Table> USql::execute_create_table_as_table(const CreateTableAsSelectNode &node) {
check_table_not_exists(node.table_name);
auto select = execute_select((SelectFromTableNode &) *node.select_table);
@@ -64,7 +66,7 @@ std::unique_ptr<Table> USql::execute_create_table_as_table(CreateTableAsSelectNo
std::unique_ptr<Table> USql::execute_drop(DropTableNode &node) {
std::unique_ptr<Table> USql::execute_drop(const DropTableNode &node) {
auto name_cmp = [node](const Table& t) { return t.m_name == node.table_name; };
auto table_def = std::find_if(begin(m_tables), end(m_tables), name_cmp);
@@ -76,12 +78,12 @@ std::unique_ptr<Table> USql::execute_drop(DropTableNode &node) {
throw Exception("table not found (" + node.table_name + ")");
}
std::unique_ptr<Table> USql::execute_set(SetNode &node) {
std::unique_ptr<Table> USql::execute_set(const SetNode &node) {
Settings::set_setting(node.name, node.value);
return create_stmt_result_table(0, "set succeeded", 1);
}
std::unique_ptr<Table> USql::execute_show(ShowNode &node) {
std::unique_ptr<Table> USql::execute_show(const ShowNode &node) {
std::string value = Settings::get_setting(node.name);
return create_stmt_result_table(0, "show succeeded: " + value, 1);
}
@@ -106,7 +108,7 @@ std::unique_ptr<Table> USql::create_stmt_result_table(long code, const std::stri
std::unique_ptr<Table> USql::execute_load(LoadIntoTableNode &node) {
std::unique_ptr<Table> USql::execute_load(const LoadIntoTableNode &node) {
// find source table
Table *table_def = find_table(node.table_name);
@@ -122,7 +124,7 @@ std::unique_ptr<Table> USql::execute_load(LoadIntoTableNode &node) {
}
std::unique_ptr<Table> USql::execute_save(SaveTableNode &node) {
std::unique_ptr<Table> USql::execute_save(const SaveTableNode &node) {
// find source table
Table *table_def = find_table(node.table_name);