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drop table added

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VaclavT
2021-07-27 19:29:04 +02:00
parent 6d4fe43a3b
commit 7d91319f0b
11 changed files with 3282 additions and 161 deletions
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16
main.cpp
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@@ -3,15 +3,13 @@
// https://dev.to/joaoh82/what-would-sqlite-look-like-if-written-in-rust-part-1-2np4
// parser should get m_lexer as param and table executor to be able translate * or get types or so
// podporovat create as select
// drop table
using namespace std::chrono;
int main(int argc, char *argv[]) {
std::vector<std::string> sql_commands{
"create table a (i integer not null, s varchar(64), f float null)",
"insert into a (i, s) values(1, upper('one'))",
"update table a set s = 'null string aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'",
"update table a set s = 'null string aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'",
// "update table a set i = null",
"insert into a (i, s) values(2, 'two')",
"insert into a (i, s) values(3, 'two')",
@@ -36,19 +34,25 @@ int main(int argc, char *argv[]) {
"select i, s, f from a where i < 300",
"create table x as select i, s, f from a where i < 300",
"select i, s, f from x where i < 300",
"drop table x",
"select i, s, f from a where i > 300",
"select i, to_string(i, '%d.%m.%Y'), s, f from a where i > 300",
"create table prices (datetime integer, symbol varchar(8), prev_close float, open float, price float, change float, change_prct varchar(16))",
"load prices from '/Users/vaclavt/Library/Mobile Documents/com~apple~CloudDocs/Development/usql/prices.csv'",
"insert into prices (datetime, symbol, prev_close, open, price, change, change_prct) values (1626979443, 'MPC', 54.08, 53.82, 53.63, -0.832101, '-0.83 %')",
"select to_string(datetime, '%d.%m.%Y %H:%M:%S'), symbol, prev_close, open, price, change, change_prct from prices"
"select to_string(datetime, '%d.%m.%Y %H:%M:%S'), symbol, prev_close, open, price, change, change_prct from prices where symbol = 'SYF'"
};
usql::USql uSql{};
for (auto command : sql_commands) {
std::cout << command << std::endl;
time_point<high_resolution_clock> start_time = high_resolution_clock::now();
auto result = uSql.execute(command);
time_point<high_resolution_clock> end_time = high_resolution_clock::now();
std::cout << command << std::endl;
std::cout << "run time: " << duration_cast<milliseconds>(end_time - start_time).count() << " ms " << std::endl;
result->print();
}