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[BUGFIX] fix merge join cmp exchange left and right

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skylhd
2023-05-19 09:17:25 +00:00
committed by ob-robot
parent 5148758db5
commit 1e5b4c75f9
1 changed files with 12 additions and 4 deletions
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16
src/sql/code_generator/ob_static_engine_cg.cpp
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@ -4352,11 +4352,19 @@ int ObStaticEngineCG::generate_join_spec(ObLogJoin &op, ObJoinSpec &spec)
CK(l.cs_type_ == r.cs_type_);
if (OB_SUCC(ret)) {
const ObScale scale = ObDatumFuncs::max_scale(l.scale_, r.scale_);
equal_cond_info.ns_cmp_func_ = ObDatumFuncs::get_nullsafe_cmp_func(l.type_,
r.type_, default_null_pos(), l.cs_type_, scale, is_oracle_mode(),
has_lob_header);
CK(OB_NOT_NULL(equal_cond_info.ns_cmp_func_));
OZ(calc_equal_cond_opposite(op, *raw_expr, equal_cond_info.is_opposite_));
if (OB_SUCC(ret)) {
if (equal_cond_info.is_opposite_) {
equal_cond_info.ns_cmp_func_ = ObDatumFuncs::get_nullsafe_cmp_func(r.type_,
l.type_, default_null_pos(), r.cs_type_, scale, is_oracle_mode(),
has_lob_header);
} else {
equal_cond_info.ns_cmp_func_ = ObDatumFuncs::get_nullsafe_cmp_func(l.type_,
r.type_, default_null_pos(), l.cs_type_, scale, is_oracle_mode(),
has_lob_header);
}
}
CK(OB_NOT_NULL(equal_cond_info.ns_cmp_func_));
OZ(mj_spec.equal_cond_infos_.push_back(equal_cond_info));
// when is_opposite_ is true: left child fetcher accept right
// arg(args_[1]) and vice versa