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[improvement][fix](insert)(replay) support SHOW LAST INSERT stmt and fix json replay bug (#8355)

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1. support SHOW LAST INSERT
    In the current implementation, the insert operation returns a json string to describe the result information
    of the insert. But this information is in the session track field of the mysql protocol,
    and it is difficult to obtain programmatically.

    Therefore, I provide a new syntax `show last insert` to explicitly obtain the result of the latest insert operation,
    and return a normal query result set to facilitate the user to obtain the result information of the insert.

2. the `ReturnRows` field in fe.audit.log of insert operation will be set to the loaded row num of the insert.

3.  Fix a bug described in #8354
This commit is contained in:
Mingyu Chen
2022-03-08 18:53:11 +08:00
committed by GitHub
parent b9010e34d0
commit 1e70f992e7
13 changed files with 355 additions and 4 deletions
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docs/en/sql-reference/sql-statements/Data Manipulation/SHOW-LAST-INSERT.md Normal file
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---
{
"title": "SHOW LAST INSERT",
"language": "en"
}
---
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# SHOW LAST INSERT
## description
This syntax is used to view the result of the last insert operation in the current session connection.
Syntax:
```
SHOW LAST INSERT
```
Example of return result.
```
TransactionId: 64067
Label: insert_ba8f33aea9544866-8ed77e2844d0cc9b
Database: default_cluster:db1
Table: t1
TransactionStatus: VISIBLE
LoadedRows: 2
FilteredRows: 0
```
* TransactionId: transaction id
* Label: label corresponding to the insert task
* Database: the database corresponding to the insert
* Table: the table corresponding to the insert
* TransactionStatus: the status of the transaction
* PREPARE: preparation phase
* PRECOMMITTED: Pre-committed stage
* COMMITTED: The transaction is successful, but the data is not visible
* VISIBLE: The transaction is successful and the data is visible
* ABORTED: The transaction failed.
* LoadedRows: Number of rows imported
* FilteredRows: number of rows filtered
## example
## keyword
SHOW, LAST, INSERT