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[FEAT MERGE]4_2_sql_feature

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Co-authored-by: yinyj17 <yinyijun92@gmail.com>
Co-authored-by: xianyu-w <707512433@qq.com>
Co-authored-by: jingtaoye35 <1255153887@qq.com>
This commit is contained in:
zzg19950727
2023-04-28 11:12:11 +00:00
committed by ob-robot
parent 3bf92459f1
commit 3cada22bdc
161 changed files with 16883 additions and 4730 deletions
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16
src/sql/optimizer/ob_select_log_plan.h
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@ -354,6 +354,22 @@ private:
bool &best_need_sort,
int64_t &best_prefix_pos,
const bool can_ignore_merge_plan);
int decide_merge_set_sort_key(const ObIArray<OrderItem> &set_order_items,
const ObIArray<OrderItem> &input_ordering,
const ObFdItemSet &fd_item_set,
const EqualSets &equal_sets,
const ObIArray<ObRawExpr*> &const_exprs,
const ObIArray<ObRawExpr*> &exec_ref_exprs,
const bool is_at_most_one_row,
const ObIArray<ObRawExpr*> &merge_exprs,
const ObIArray<ObOrderDirection> &default_directions,
MergeKeyInfo &merge_key);
int convert_set_order_item(const ObDMLStmt *stmt, const ObIArray<ObRawExpr*> &select_exprs, ObIArray<OrderItem> &order_items);
int create_merge_set_key(const ObIArray<OrderItem> &set_order_items,
const ObIArray<ObRawExpr*> &merge_exprs,
const EqualSets &equal_sets,
MergeKeyInfo &merge_key);
/**
* @brief create_merge_set
* create merge-based set operation