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fix lrpad return null when param is empty string && fix nanvl return null when 1st param is binary double

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This commit is contained in:
18523270951@163.com
2023-05-23 10:47:11 +00:00
committed by ob-robot
parent 03fdde5756
commit d38916c6f0
4 changed files with 9 additions and 8 deletions
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2
src/sql/engine/expr/ob_expr_lrpad.cpp
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@ -653,7 +653,7 @@ int ObExprBaseLRpad::calc_mysql_inner(const LRpadType pad_type,
result_size = ObCharset::charpos(cs_type, str_text.ptr(), str_text.length(), int_len);
res.set_string(ObString(result_size, str_text.ptr()));
} else if (str_pad.length() == 0) {
res.set_null();
res.set_string(ObString::make_empty_string());
} else if (OB_FAIL(get_padding_info_mysql(cs_type, str_text, int_len, str_pad,
max_result_size, repeat_count, prefix_size, result_size))) {
LOG_WARN("Failed to get padding info", K(ret), K(str_text), K(int_len),

10
src/sql/engine/expr/ob_expr_nvl.cpp
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@ -438,9 +438,7 @@ int ObExprNaNvl::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
int ObExprNaNvl::eval_nanvl_util(const ObExpr &expr, ObDatum &expr_datum, ObDatum *param1, ObDatum *param2, bool &ret_bool)
{
int ret = OB_SUCCESS;
if (param1->is_null() || param2->is_null()) {
expr_datum.set_null();
} else if (expr.args_[0]->datum_meta_.type_ != ObFloatType
if (expr.args_[0]->datum_meta_.type_ != ObFloatType
&& expr.args_[0]->datum_meta_.type_ != ObDoubleType) {
expr_datum.set_datum(*param1);
} else {
@ -470,7 +468,7 @@ int ObExprNaNvl::eval_nanvl(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_da
expr_datum.set_null();
} else if (OB_FAIL(expr.args_[1]->eval(ctx, param2))) {
LOG_WARN("eval second param failed", K(ret));
} else if (param1->is_null() || param2->is_null()) {
} else if (param1->is_null() || (param2->is_null() && ObDoubleType != expr.args_[1]->datum_meta_.get_type())) {
expr_datum.set_null();
} else {
if (OB_FAIL(eval_nanvl_util(expr, expr_datum, param1, param2, ret_bool))){
@ -520,7 +518,9 @@ int ObExprNaNvl::eval_nanvl_batch(const ObExpr &expr,
param1 = &expr.args_[0]->locate_expr_datum(ctx, i);
param2 = &expr.args_[1]->locate_expr_datum(ctx, i);
eval_flags.set(i);
if (OB_FAIL(eval_nanvl_util(expr, results[i], param1, param2, ret_bool))){
if (param1->is_null() || (param2->is_null() && ObDoubleType != expr.args_[1]->datum_meta_.get_type())) {
results[i].set_null();
} else if (OB_FAIL(eval_nanvl_util(expr, results[i], param1, param2, ret_bool))){
LOG_WARN("eval_nanvl unexpect error", K(ret));
} else {
// do nothing

3
src/sql/engine/set/ob_merge_set_op.cpp
View File

@ -35,7 +35,8 @@ ObMergeSetOp::ObMergeSetOp(ObExecContext &exec_ctx, const ObOpSpec &spec, ObOpIn
last_row_(alloc_),
cmp_(),
need_skip_init_row_(false),
last_row_idx_(-1)
last_row_idx_(-1),
use_last_row_(false)
{}
int ObMergeSetOp::inner_open()

2
tools/deploy/mysql_test/test_suite/static_engine/r/mysql/expr_pad.result
View File

@ -6124,7 +6124,7 @@ select lpad('a', 5, '');
+------------------+
| lpad('a', 5, '') |
+------------------+
| NULL |
| |
+------------------+
select lpad(NULL, 5, 'a');
+--------------------+