[FEAT MERGE]4_2_sql_feature
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
@ -84,9 +84,14 @@ struct DistinctObjMeta
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ObIArray<ColumnItem> &column_items);
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/*
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* following functions are for grouping sets and multi rollup
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* following functions are for grouping sets and rollup and cube
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*/
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int transform_for_grouping_sets_and_multi_rollup(ObDMLStmt *&stmt, bool &trans_happened);
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int transform_groupingsets_rollup_cube(ObDMLStmt *&stmt, bool &trans_happened);
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int try_convert_rollup(ObDMLStmt *&stmt, ObSelectStmt *select_stmt);
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int remove_single_item_groupingsets(ObSelectStmt &stmt, bool &trans_happened);
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int create_set_view_stmt(ObSelectStmt *stmt, TableItem *view_table_item);
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int create_cte_for_groupby_items(ObSelectStmt &select_stmt);
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int expand_stmt_groupby_items(ObSelectStmt &select_stmt);
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int is_subquery_correlated(const ObSelectStmt *stmt,
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bool &is_correlated);
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@ -104,31 +109,67 @@ struct DistinctObjMeta
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int add_generated_table_as_temp_table(ObTransformerCtx *ctx,
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ObDMLStmt *stmt);
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int replace_with_set_stmt_view(ObSelectStmt *origin_stmt,
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ObSelectStmt *grouping_sets_view,
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ObSelectStmt *&union_stmt);
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int create_set_view_stmt(ObSelectStmt *origin_stmt,
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ObSelectStmt *&set_view_stmt);
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int create_select_list_from_grouping_sets(ObSelectStmt *stmt,
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common::ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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int64_t origin_groupby_num = -1);
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int64_t get_total_count_of_groupby_stmt(ObIArray<ObGroupingSetsItem> &grouping_sets_items,
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ObIArray<ObMultiRollupItem> &multi_rollup_items);
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int get_groupby_exprs_list(ObIArray<ObGroupingSetsItem> &grouping_sets_items,
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ObIArray<ObMultiRollupItem> &multi_rollup_items,
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ObIArray<ObRollupItem> &rollup_items,
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ObIArray<ObCubeItem> &cube_items,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list);
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int expand_multi_rollup_items(ObIArray<ObMultiRollupItem> &multi_rollup_items,
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ObIArray<ObGroupbyExpr> &rollup_list_exprs);
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int expand_grouping_sets_items(common::ObIArray<ObGroupingSetsItem> &grouping_sets_items,
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common::ObIArray<ObGroupbyExpr> &grouping_sets_exprs);
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int expand_rollup_items(ObIArray<ObRollupItem> &rollup_items,
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ObIArray<ObGroupbyExpr> &rollup_list_exprs);
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int expand_cube_items(ObIArray<ObCubeItem> &cube_items,
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ObIArray<ObRollupItem> &rollup_items_lists);
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int expand_cube_item(ObCubeItem &cube_item,
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ObIArray<ObRollupItem> &rollup_items_lists);
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int combination_two_rollup_list(ObIArray<ObGroupbyExpr> &rollup_list_exprs1,
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ObIArray<ObGroupbyExpr> &rollup_list_exprs2,
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ObIArray<ObGroupbyExpr> &rollup_list_exprs);
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int check_pre_aggregate(const ObSelectStmt &select_stmt, bool &can_pre_aggr);
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int transform_grouping_sets_to_rollup_exprs(ObSelectStmt &origin_stmt,
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ObIArray<ObGroupbyExpr> &origin_groupby_exprs_list,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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ObIArray<ObGroupbyExpr> &rollup_exprs_list);
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int simple_expand_grouping_sets_items(ObIArray<ObGroupingSetsItem> &grouping_sets_items,
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ObIArray<ObGroupingSetsItem> &simple_grouping_sets_items);
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int create_child_stmts_for_groupby_sets(ObSelectStmt *origin_stmt,
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ObIArray<ObSelectStmt*> &child_stmts);
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int get_groupby_and_rollup_exprs_list(ObSelectStmt *origin_stmt,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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ObIArray<ObGroupbyExpr> &rollup_exprs_list);
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int create_groupby_substmt(const ObIArray<ObRawExpr*> &origin_groupby_exprs,
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const ObIArray<ObRawExpr*> &origin_rollup_exprs,
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ObSelectStmt &origin_stmt,
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ObSelectStmt *&substmt,
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ObIArray<ObRawExpr*> &groupby_exprs);
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int convert_select_having_in_groupby_stmt(const ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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const ObIArray<ObGroupbyExpr> &rollup_exprs_list,
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const ObIArray<ObRawExpr*> &groupby_exprs,
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const int64_t cur_index,
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const ObSelectStmt &origin_stmt,
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ObSelectStmt &substmt);
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// calc 'grouping', 'grouping id', 'group id'
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int calc_group_type_aggr_func(const ObIArray<ObRawExpr*> &groupby_exprs,
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const ObIArray<ObRawExpr*> &rollup_exprs,
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const ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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const int64_t cur_index,
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const int64_t origin_groupby_num,
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ObAggFunRawExpr *expr,
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ObRawExpr *&new_expr);
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int calc_grouping_in_grouping_sets(const ObIArray<ObRawExpr*> &groupby_exprs,
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const ObIArray<ObRawExpr*> &rollup_exprs,
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ObAggFunRawExpr *expr,
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ObRawExpr *&new_expr);
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int calc_grouping_id_in_grouping_sets(const ObIArray<ObRawExpr*> &groupby_exprs,
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const ObIArray<ObRawExpr*> &rollup_exprs,
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ObAggFunRawExpr *expr,
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ObRawExpr *&new_expr);
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int calc_group_id_in_grouping_sets(const ObIArray<ObRawExpr*> &groupby_exprs,
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const ObIArray<ObRawExpr*> &rollup_exprs,
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const ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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const int64_t cur_index,
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const int64_t origin_groupby_num,
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ObAggFunRawExpr *expr,
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ObRawExpr *&new_expr);
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/*
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* following functions are for hierarchical query
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*/
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@ -395,80 +436,6 @@ struct DistinctObjMeta
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int transform_generated_rownum_eq_cond(ObRawExpr *eq_value,
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ObRawExpr *&limit_expr,
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ObRawExpr *&offset_expr);
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int expand_grouping_sets_items(common::ObIArray<ObGroupingSetsItem> &grouping_sets_items,
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common::ObIArray<ObGroupbyExpr> &grouping_sets_exprs);
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int replace_select_and_having_exprs(ObSelectStmt *select_stmt,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index = -1,
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int64_t origin_groupby_num = -1);
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int replace_stmt_special_exprs(ObSelectStmt *select_stmt,
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ObRawExpr *&expr,
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common::ObIArray<ObRawExpr*> &old_exprs,
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common::ObIArray<ObRawExpr*> &new_exprs,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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bool ignore_const = false,
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int64_t cur_index = -1,
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int64_t origin_groupby_num = -1);
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int replace_aggr_exprs_in_select_and_having(ObRawExpr *&expr,
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ObIArray<ObRawExpr*> &groupby_exprs,
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ObIArray<ObRawExpr*> &rollup_exprs,
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ObIArray<ObAggFunRawExpr*> &aggr_items,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObRelIds &rel_ids,
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int64_t origin_groupby_num = -1,
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bool using_rel_ids = true);
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int calc_grouping_in_grouping_sets(ObRawExpr *&expr,
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ObIArray<ObRawExpr*> &groupby_exprs,
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ObIArray<ObRawExpr*> &rollup_exprs,
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ObIArray<ObAggFunRawExpr*> &aggr_items,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObRelIds &rel_ids,
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bool using_rel_ids = true);
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int calc_grouping_id_in_grouping_sets(ObRawExpr *&expr,
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ObIArray<ObRawExpr*> &groupby_exprs,
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ObIArray<ObRawExpr*> &rollup_exprs,
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ObIArray<ObAggFunRawExpr*> &aggr_items,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObRelIds &rel_ids,
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bool using_rel_ids = true);
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int calc_group_id_in_grouping_sets(ObRawExpr *&expr,
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ObIArray<ObRawExpr*> &groupby_exprs,
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ObIArray<ObRawExpr*> &rollup_exprs,
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ObIArray<ObAggFunRawExpr*> &aggr_items,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObRelIds &rel_ids,
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int64_t origin_groupby_num = -1,
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bool using_rel_ids = true);
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bool is_select_expr_in_other_groupby_exprs(ObRawExpr *expr,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index);
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bool is_expr_in_select_item(ObIArray<SelectItem> &select_items,
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ObRawExpr *expr);
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int extract_select_expr_and_replace_expr(ObRawExpr *expr,
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ObIArray<ObRawExpr*> &groupby_exprs,
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ObIArray<ObRawExpr*> &rollup_exprs,
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ObIArray<ObAggFunRawExpr*> &aggr_items,
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ObIArray<ObGroupbyExpr> &groupby_exprs_list,
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int64_t cur_index,
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ObIArray<SelectItem> &select_items,
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ObIArray<ObRawExpr*> &old_exprs,
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ObIArray<ObRawExpr*> &new_exprs,
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ObRelIds &rel_ids,
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int64_t origin_groupby_num = -1);
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int extract_stmt_replace_expr(ObSelectStmt *select_stmt, ObIArray<ObRawExpr*> &old_exprs);
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int extract_replace_expr_from_select_expr(ObRawExpr *expr,
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ObSelectStmt *select_stmt,
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ObIArray<ObRawExpr*> &old_exprs);
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int replace_group_id_in_stmt(ObSelectStmt *stmt);
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int replace_group_id_in_expr_recursive(ObRawExpr *&expr);
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