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[SCN REFACTOR] replace flash back snapshot and remove read snapshot session

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This commit is contained in:
wangt1xiuyi
2022-11-28 01:54:50 +00:00
committed by ob-robot
parent c4c13f6296
commit 11485d6a98
268 changed files with 6763 additions and 7737 deletions
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15
src/sql/resolver/dml/ob_hint.h
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@ -70,6 +70,8 @@ struct ObOptParamHint
DEF(HIDDEN_COLUMN_VISIBLE,) \
DEF(ROWSETS_ENABLED,) \
DEF(ROWSETS_MAX_ROWS,) \
DEF(DDL_EXECUTION_ID,) \
DEF(DDL_TASK_ID,) \
DECLARE_ENUM(OptParamType, opt_param, OPT_PARAM_TYPE_DEF, static);
@ -245,7 +247,7 @@ struct ObTableInHint
bool ignore_qb_name = false);
void reset() { qb_name_.reset(); db_name_.reset(); table_name_.reset(); }
void reset(const TableItem& table);
void set_table(const TableItem& table);
DECLARE_TO_STRING;
@ -706,7 +708,7 @@ private:
class ObTableParallelHint : public ObOptHint
{
public:
ObTableParallelHint(ObItemType hint_type)
ObTableParallelHint(ObItemType hint_type = T_TABLE_PARALLEL)
: ObOptHint(hint_type), parallel_(ObGlobalHint::UNSET_PARALLEL)
{
set_hint_class(HINT_TABLE_PARALLEL);
@ -788,7 +790,8 @@ class ObPQSetHint : public ObOptHint
public:
ObPQSetHint(ObItemType hint_type = T_PQ_SET)
: ObOptHint(hint_type),
dist_methods_()
dist_methods_(),
left_branch_()
{
set_hint_class(HINT_PQ_SET);
}
@ -804,11 +807,13 @@ class ObPQSetHint : public ObOptHint
ObIArray<ObItemType> &get_dist_methods() { return dist_methods_; }
int set_pq_set_hint(const DistAlgo dist_algo, const int64_t child_num, const int64_t random_none_idx);
DistAlgo get_dist_algo(int64_t &random_none_idx) const { return get_dist_algo(dist_methods_, random_none_idx); }
INHERIT_TO_STRING_KV("ObHint", ObHint, K_(dist_methods));
const ObString &get_left_branch() const { return left_branch_; }
void set_left_branch(const ObString &left_branch) { return left_branch_.assign_ptr(left_branch.ptr(), left_branch.length()); }
INHERIT_TO_STRING_KV("ObHint", ObHint, K_(dist_methods), K_(left_branch));
private:
common::ObSEArray<ObItemType, 2, common::ModulePageAllocator, true> dist_methods_;
common::ObString left_branch_; // qb_name for first branch of set, used for union distinct / intersect
};
class ObJoinOrderHint : public ObOptHint {