After all LRU Cache inherits from LRUCachePolicy, this will allow prune stale entry, eviction when memory exceeds limit, and define common properties. LRUCache constructor change to private, only allow LRUCachePolicy to construct it.
Impl DummyLRUCache, when LRU Cache capacity is 0, will no longer be meaningless insert and evict.
TabletSchema and Schema no longer track memory, only track columns count. because cannot accurately track memory size.
TabletMeta MemTracker changed to track TabletSchema columns count.
Segment::_meta_mem_usage Unknown value overflow, causes the value of SegmentMeta MemTracker is similar to -2912341218700198079. So, temporarily put it in experimental type tracker.
* [DNM](decimal) use new way for decimal arithmetic precision promotion
* [improvement](decimal) [DNM](decimal) use new way for decimal arithmetic precision promotion
1. [DNM](decimal) use new way for decimal arithmetic precision promotion
2. throw exception if it overflows for decimal arithmetics
3. throw exception if it overflows when casting among number types
* fix compile error of gcc
* improvement
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Co-authored-by: morrySnow <morrysnow@126.com>
Design Documentation Linked to #25514
Regression test add a new group: arrow_flight_sql,
./run-regression-test.sh -g arrow_flight_sql to run regression-test, can use jdbc:arrow-flight-sql to run all Suites whose group contains arrow_flight_sql.
./run-regression-test.sh -g p0,arrow_flight_sql to run regression-test, can use jdbc:arrow-flight-sql to run all Suites whose group contains arrow_flight_sql, and use jdbc:mysql to run other Suites whose group contains p0 but does not contain arrow_flight_sql.
Requires attention, the formats of jdbc:arrow-flight-sql and jdbc:mysql and mysql client query results are different, for example:
Datatime field type: jdbc:mysql returns 2010-01-02T05:09:06, mysql client returns 2010-01-02 05:09:06, jdbc:arrow-flight-sql also returns 2010-01-02 05:09 :06.
Array and Map field types: jdbc:mysql returns ["ab", "efg", null], {"f1": 1, "f2": "a"}, jdbc:arrow-flight-sql returns ["ab ","efg",null], {"f1":1,"f2":"a"}, which is missing spaces.
Float field type: jdbc:mysql and mysql client returns 6.333, jdbc:arrow-flight-sql returns 6.333000183105469, in query_p0/subquery/test_subquery.groovy.
If the query result is empty, jdbc:arrow-flight-sql returns empty and jdbc:mysql returns \N.
use database; and query should be divided into two SQL executions as much as possible. otherwise the results may not be as expected. For example: USE information_schema; select cast ("0.0101031417" as datetime) The result is 2000-01-01 03:14:1 (constant fold), select cast ("0.0101031417" as datetime) The result is null (no constant fold),
In addition, doris jdbc:arrow-flight-sql still has unfinished parts, such as:
Unsupported data type: Decimal256. INVALID_ARGUMENT: [INTERNAL_ERROR]Fail to convert block data to arrow data, error: [E3] write_column_to_arrow with type Decimal256
Unsupported null value of map key. INVALID_ARGUMENT: [INTERNAL_ERROR]Fail to convert block data to arrow data, error: [E33] Can not write null value of map key to arrow.
Unsupported data type: ARRAY<MAP<TEXT,TEXT>>
jdbc:arrow-flight-sql not support connecting to specify DB name, such asjdbc:arrow-flight-sql://127.0.0.1:9090/{db_name}", In order to be compatible with regression-test, use db_nameis added before all SQLs whenjdbc:arrow-flight-sql` runs regression test.
select timediff("2010-01-01 01:00:00", "2010-01-02 01:00:00");, error java.lang.NumberFormatException: For input string: "-24:00:00"
Opt zstd block decompression by `ZSTD_decompressDCtx()` to replace streaming decompression.
It will improve performance but consume more memory.
Test result:
- env: 1 node(16 cores, 64G).
- parquet column: 100 million rows of char(255) column.
- result: 5.2 -> 4.6.
Fixed the problem of not being able to read parquet lz4 compressed format. By default, it is decompressed according to the Hadoop lz4 format. If it fails, it will fall back to the standard lz4 compression format.
