/Users/deen/code/yugabyte-db/src/yb/yql/pggate/pg_dml_write.h
Line | Count | Source |
1 | | //-------------------------------------------------------------------------------------------------- |
2 | | // Copyright (c) YugaByte, Inc. |
3 | | // |
4 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
5 | | // in compliance with the License. You may obtain a copy of the License at |
6 | | // |
7 | | // http://www.apache.org/licenses/LICENSE-2.0 |
8 | | // |
9 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
10 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
11 | | // or implied. See the License for the specific language governing permissions and limitations |
12 | | // under the License. |
13 | | //-------------------------------------------------------------------------------------------------- |
14 | | |
15 | | #ifndef YB_YQL_PGGATE_PG_DML_WRITE_H_ |
16 | | #define YB_YQL_PGGATE_PG_DML_WRITE_H_ |
17 | | |
18 | | #include "yb/yql/pggate/pg_dml.h" |
19 | | |
20 | | namespace yb { |
21 | | namespace pggate { |
22 | | |
23 | | //-------------------------------------------------------------------------------------------------- |
24 | | // DML WRITE - Insert, Update, Delete. |
25 | | //-------------------------------------------------------------------------------------------------- |
26 | | |
27 | | class PgDmlWrite : public PgDml { |
28 | | public: |
29 | | // Abstract class without constructors. |
30 | | virtual ~PgDmlWrite(); |
31 | | |
32 | | // Prepare write operations. |
33 | | virtual CHECKED_STATUS Prepare(); |
34 | | |
35 | | // Setup internal structures for binding values during prepare. |
36 | | void PrepareColumns(); |
37 | | |
38 | | // force_non_bufferable flag indicates this operation should not be buffered. |
39 | | CHECKED_STATUS Exec(bool force_non_bufferable = false); |
40 | | |
41 | 14 | void SetIsSystemCatalogChange() { |
42 | 14 | write_req_->set_is_ysql_catalog_change(true); |
43 | 14 | } |
44 | | |
45 | 7.19M | void SetCatalogCacheVersion(const uint64_t catalog_cache_version) override { |
46 | 7.19M | write_req_->set_ysql_catalog_version(catalog_cache_version); |
47 | 7.19M | } |
48 | | |
49 | 19.1k | int32_t GetRowsAffectedCount() { |
50 | 19.1k | return rows_affected_count_; |
51 | 19.1k | } |
52 | | |
53 | | CHECKED_STATUS SetWriteTime(const HybridTime& write_time); |
54 | | |
55 | | protected: |
56 | | // Constructor. |
57 | | PgDmlWrite(PgSession::ScopedRefPtr pg_session, |
58 | | const PgObjectId& table_id, |
59 | | bool is_single_row_txn = false); |
60 | | |
61 | | // Allocate write request. |
62 | | void AllocWriteRequest(); |
63 | | |
64 | | // Allocate column expression. |
65 | | PgsqlExpressionPB *AllocColumnBindPB(PgColumn *col) override; |
66 | | |
67 | | // Allocate target for selected or returned expressions. |
68 | | PgsqlExpressionPB *AllocTargetPB() override; |
69 | | |
70 | | // Allocate protobuf for a qual in the write request's where_clauses list. |
71 | | PgsqlExpressionPB *AllocQualPB() override; |
72 | | |
73 | | // Allocate protobuf for a column reference in the write request's col_refs list. |
74 | | PgsqlColRefPB *AllocColRefPB() override; |
75 | | |
76 | | // Clear the write request's col_refs list. |
77 | | void ClearColRefPBs() override; |
78 | | |
79 | | // Allocate column expression. |
80 | | PgsqlExpressionPB *AllocColumnAssignPB(PgColumn *col) override; |
81 | | |
82 | | // Protobuf code. |
83 | | std::shared_ptr<PgsqlWriteRequestPB> write_req_; |
84 | | |
85 | | bool is_single_row_txn_ = false; // default. |
86 | | |
87 | | int32_t rows_affected_count_ = 0; |
88 | | |
89 | | private: |
90 | | CHECKED_STATUS DeleteEmptyPrimaryBinds(); |
91 | | |
92 | | virtual PgsqlWriteRequestPB::PgsqlStmtType stmt_type() const = 0; |
93 | | }; |
94 | | |
95 | | } // namespace pggate |
96 | | } // namespace yb |
97 | | |
98 | | #endif // YB_YQL_PGGATE_PG_DML_WRITE_H_ |