> Due to the dangers inherent to automatic processing of PRs, GitHub’s standard pull_request workflow trigger by
default prevents write permissions and secrets access to the target repository. However, in some scenarios such
access is needed to properly process the PR. To this end the pull_request_target workflow trigger was introduced.
According to the article [Keeping your GitHub Actions and workflows secure](https://securitylab.github.com/research/github-actions-preventing-pwn-requests/) , the trigger condition in
`shellcheck.yml` which is `pull_request` can't comment the PR due to the lack of write permissions of the workflow.
Despite the `ShellCheck` workflow checkouts the source, but it doesn't build and test the source code. I think it is safe
to change the trigger condition from `pull_request` to `pull_request_target` which can make the workflow have write
permissions to comment the PR.
When the physical memory of the process reaches 90% of the mem limit, trigger the load channel mgr to brush down
The default value of be.conf mem_limit is changed from 90% to 80%, and stability is the priority.
Fix deadlock in arena_locks in BufferPool::BufferAllocator::ScavengeBuffers and _lock in DebugString
In order to avoid different mem tracker consumption values of multiple queries/loads, and the difference between the virtual memory of alloc and the physical memory actually increased by the process.
The memory alloc in PODArray and mempool will not be recorded in the query/load mem tracker immediately, but will be gradually recorded in the mem tracker during the memory usage.
But mem pool allocates memory from chunk allocator. If this chunk is used after the second time, it may have used physical memory. The above mechanism will cause the load channel memory statistics to be less than the actual value.
TPCH q7, we have expression like
(n1.n_name = 'FRANCE' and n2.n_name = 'GERMANY') or (n1.n_name = 'GERMANY' and n2.n_name = 'FRANCE')
this expression implies
(n1.n_name='FRANCE' or n1.n_name=''GERMANY)
The implied expression is logical redundancy, but it could be used to reduce the output tuple number of scan(n1), if nereids pushes this expression down.
This pr introduces a RULE to extract such expressions.
NOTE:
1. we only extract expression on a single table.
2. if the extracted expression cannot be pushed down, e.g. it is on right table of left outer join, we need another rule to remove all the useless expressions.
* [fix](parquet) fix write error data as parquet format.
Fix incorrect data conversion when writing tiny int and small int data
to parquet files in non-vectorized engine.
Add `JSON` datatype, following features are implemented by this PR:
1. `CREATE` tables with `JSON` type columns
2. `INSERT` values containing `JSON` type value stored in `String`, which is represented as binary format(AKA `JSONB`) at BE
3. `SELECT` JSON columns
Detail design refers [DSIP-016: Support JSON type](https://cwiki.apache.org/confluence/display/DORIS/DSIP-016%3A+Support+JSON+type)
* add JSONB data storage format type
* fix JsonLiteral resolve bug
* add DataTypeJson case in data_type_factory
* add JSON syntax check in FE
* add operators for jsonb_document, currently not support comparison between any JSON type value
* add ColumnJson and DataTypeJson
* add JsonField to store JsonValue
* add JsonValue to convert String JSON to BINARY JSON and JsonLiteral case for vliteral
* add push_json for MysqlResultWriter
* JSON column need no zone_map_index
* Revert "JSON column need no zone_map_index"
This reverts commit f71d1ce1ded9dbae44a5d58abcec338816b70d79.
* add JSON writer and reader, ignore zone-map for JSON column
* add json_to_string for DataTypeJson
* add olap_data_convertor for JSON type
* add some enum
* add OLAP_FIELD_TYPE_JSON type, FieldTypeTraits for it and corresponding cases or functions
* fix column_json offsets overflow bug, format code
* remove useless TODOs, add CmpType cases for JSON type
* add license header
* format license
* format be codes
* resolve rebase master conflicts
* fix bugs for CREATE and meta related code
* refactor JsonValue constructors, add fe JSON cases and fix some bugs, reformat codes
* modification be codes along code review advice
* fix rebase conflicts with master
* add unit test for json_value and column_json
* fix rebase error
* rename json to jsonb
* fix some data convert bugs, set Mysql type to JSON
Fix bugs:
1. Fe need to send file format (e.g. parquet, orc ...) to be while processing load jobs using new scanner.
2. Try to get parquet file column type from SchemaElement.type before getting from Logical type and Converted type.
1. Remove single load channel mem limit, only use load channel mgr mem limit
2. Default load channel mgr mem limit from 50% to 80%
3. load channel mgr add soft mem limit. When the soft limit is exceeded, other threads will not hang, only current thread triggers flush
4. When exceed load channel mgr mem limit, find a load channel with the largest mem usage, continue to find a tablet channel with the largest mem usage, and try to flush 1/3 of the mem usage of this tablet channel.
