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VaclavT
2021-11-17 15:35:57 +01:00
parent cc639ee891
commit 411f0fd48c
25 changed files with 609 additions and 807 deletions
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16
usql.cpp
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@@ -4,7 +4,6 @@
#include "ml_string.h"
#include <algorithm>
#include <fstream>
namespace usql {
@@ -24,6 +23,8 @@ std::unique_ptr<Table> USql::execute(Node &node) {
switch (node.node_type) {
case NodeType::create_table:
return execute_create_table(static_cast<CreateTableNode &>(node));
case NodeType::create_index:
return execute_create_index(static_cast<CreateIndexNode &>(node));
case NodeType::create_table_as_select:
return execute_create_table_as_table(static_cast<CreateTableAsSelectNode &>(node));
case NodeType::drop_table:
@@ -108,7 +109,7 @@ std::unique_ptr<ValueNode> USql::eval_value_node(Table *table, Row &row, Node *n
if (node->node_type == NodeType::database_value) {
return eval_database_value_node(table, row, node);
} else if (node->node_type == NodeType::int_value || node->node_type == NodeType::float_value || node->node_type == NodeType::string_value || node->node_type == NodeType::bool_value) {
return eval_literal_value_node(table, row, node);
return eval_literal_value_node(row, node);
} else if (node->node_type == NodeType::function) {
return eval_function_value_node(table, row, node, col_def_node, agg_func_value);
} else if (node->node_type == NodeType::null_value) {
@@ -143,7 +144,7 @@ std::unique_ptr<ValueNode> USql::eval_database_value_node(Table *table, Row &row
}
std::unique_ptr<ValueNode> USql::eval_literal_value_node(Table *table, Row &row, Node *node) {
std::unique_ptr<ValueNode> USql::eval_literal_value_node(Row &row, Node *node) {
if (node->node_type == NodeType::int_value) {
auto *ivl = static_cast<IntValueNode *>(node);
return std::make_unique<IntValueNode>(ivl->value);
@@ -344,7 +345,7 @@ std::unique_ptr<ValueNode> USql::pp_function(const std::vector<std::unique_ptr<V
return std::make_unique<StringValueNode>(parsed_value->getStringValue().substr(0, 10));
// TODO introduce constant for 10
std::string s {buf};
return std::make_unique<StringValueNode>(string_padd(s.erase(s.find_last_not_of(" ")+1), 10, ' ', false));
return std::make_unique<StringValueNode>(string_padd(s.erase(s.find_last_not_of(' ')+1), 10, ' ', false));
}
return std::make_unique<StringValueNode>(parsed_value->getStringValue());
}
@@ -411,17 +412,17 @@ USql::min_function(const std::vector<std::unique_ptr<ValueNode>> &evaluatedPars,
throw Exception("unsupported data type for min function");
}
Table *USql::find_table(const std::string &name) {
Table *USql::find_table(const std::string &name) const {
auto name_cmp = [name](const Table& t) { return t.m_name == name; };
auto table_def = std::find_if(begin(m_tables), end(m_tables), name_cmp);
if (table_def != std::end(m_tables)) {
return table_def.operator->();
return const_cast<Table *>(table_def.operator->());
} else {
throw Exception("table not found (" + name + ")");
}
}
void USql::check_table_not_exists(const std::string &name) {
void USql::check_table_not_exists(const std::string &name) const {
auto name_cmp = [name](const Table& t) { return t.m_name == name; };
auto table_def = std::find_if(begin(m_tables), end(m_tables), name_cmp);
if (table_def != std::end(m_tables)) {
@@ -429,5 +430,4 @@ void USql::check_table_not_exists(const std::string &name) {
}
}
} // namespace