feat(tianmu): support unsigned zerofill #1716 #1813
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[summary] 1. delete unsigned/zerofill limit. 2. zerofill is deprecated and will be removed in a future release, Use the LPAD function to zero-pad numbers, or store the formatted numbers in a CHAR column.
[summary]
In non-strict sql_mode, insert sucess with warning.
in strict sql_mode, crashed in function `Sql_cmd_insert_values::execute_inner(THD *thd)` in file `sql/sql_insert.cc`:
```
if (write_record(thd, insert_table, &info, &update)) {
has_error = true;
break;
}
thd->get_stmt_da()->inc_current_row_for_condition();
}
} // Statement plan is available within these braces
assert(has_error == thd->get_stmt_da()->is_error());
```
here `has_error` = false, `thd->get_stmt_da()->is_error()` = true, that
caused crashed.
When insert data out of range, `tianmu` engine push a warning into mysql, but in strict sql_mode, the
`Sql_condition::SL_WARNING` will be changed to `Sql_condition::SL_ERROR` in function:
```
/**
Implementation of STRICT mode.
Upgrades a set of given conditions from warning to error.
*/
bool Strict_error_handler::handle_condition(
...
...
switch (sql_errno) {
...
case ER_WARN_DATA_OUT_OF_RANGE:
case ER_WARN_DATA_OUT_OF_RANGE_FUNCTIONAL_INDEX:
if ((*level == Sql_condition::SL_WARNING) &&
(!thd->get_transaction()->cannot_safely_rollback(
Transaction_ctx::STMT) ||
(thd->variables.sql_mode & MODE_STRICT_ALL_TABLES))) {
(*level) = Sql_condition::SL_ERROR;
}
break;
default:
break;
}
return false;
```
So, `write_record(thd, insert_table, &info, &update)` should return error and then set ` has_error = true;`, after debug, I found `ret` value not set `1` when execption get in function:
```
int Engine::InsertRow(const std::string &table_path, [[maybe_unused]] Transaction *trans_, TABLE *table,
std::shared_ptr<TableShare> &share) {
int ret = 0;
try {
ret = rct->Insert(table);
return ret;
} catch (...) {
TIANMU_LOG(LogCtl_Level::ERROR, "delayed inserting failed.");
}
return ret;
}
```
we should set `ret` = 1 in strict sql_mode in catch block.
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hustjieke
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Summary about this PR
Issue Number: close #1716
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