…avior (#38847)
https://github.com/apache/doris/pull/38847
## Proposed changes
There are two issues here. First, the results of casting are
inconsistent between FE and BE .
```
FE
mysql [(none)]>select cast('3.000' as int);
+----------------------+
| cast('3.000' as INT) |
+----------------------+
| 3 |
+----------------------+
mysql [(none)]>set debug_skip_fold_constant = true;
BE
mysql [(none)]>select cast('3.000' as int);
+----------------------+
| cast('3.000' as INT) |
+----------------------+
| NULL |
+----------------------+
```
The second issue is that casting on BE converts '3.0' to null. Here, the
casting logic for FE and BE has been unified
<!--Describe your changes.-->
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
---------
Co-authored-by: Xinyi Zou <zouxinyi02@gmail.com>
pick #39412
At present, if the table structure changes, the routine load cannot
perceive it. As a long-running load, it should be able to perceive the
changes in the table structure.
pick from master #36316
expression cast( xx as decimal )'s datatype maybe decimalv3 or decimalv2
depending on enable_decimal_conversion value in fe conf file. if
enable_decimal_conversion is true, the datatype is decimalv3(9, 0), but
the datatype was decimalv3(38, 9) in 2.0 releases. So this pr change the
datatype same as 2.0 releases to keep the behavior consistent.
eliminate empty relations for following patterns:
topn->empty
sort->empty
distribute->empty
project->empty
(cherry picked from commit 8340f23946c0c8e40510ce937acd3342cb2e28b7)
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
## Further comments
If this is a relatively large or complex change, kick off the discussion
at [dev@doris.apache.org](mailto:dev@doris.apache.org) by explaining why
you chose the solution you did and what alternatives you considered,
etc...
* [Feat](nereids) when dealing insert into stmt with empty table source, fe returns directly (#34418)
When a LogicalOlapScan has no partitions, transform it to a LogicalEmptyRelation.
When dealing insert into stmt with empty table source, fe returns directly.
* [Fix](nereids) fix when insert into select empty table
---------
Co-authored-by: feiniaofeiafei <moailing@selectdb.com>
Issue Number: close#29406
1. increase lzop version to 0x1040,
I set to 0x1040 only for decompressing lzo files compressed by higher version of lzop,
no change of decompressing logic,
actully, 0x1040 should have "F_H_FILTER" feature,
but it mainly for audio and image data, so we do not support it.
2. use orc::lzoDecompress() instead of lzo1x_decompress_safe() to decompress lzo data
3. use crc32c::Extend() instead of lzo_crc32()
4. use olap_adler32() instead of lzo_adler32()
5. thus, remove dependency of Markus F.X.J. Oberhumer's lzo library
6. remove DORIS_WITH_LZO, so lzo file are supported by stream and broker load by default
7. add some regression test
In the load process, if there are problems with the original data, we will store the error data in an error_log file on the disk for subsequent debugging. However, if there are many error data, it will occupy a lot of disk space. Now we want to limit the number of error data that is saved to the disk.
Be familiar with the usage of doris' import function and internal implementation process
Add a new be configuration item load_error_log_limit_bytes = default value 200MB
Use the newly added threshold to limit the amount of data that RuntimeState::append_error_msg_to_file writes to disk
Write regression cases for testing and verification
Co-authored-by: xy720 <22125576+xy720@users.noreply.github.com>
1. create aggregation table
2. insert some data
3. drop the table and create again
4. modify some parameters for some branch
5. insert some data
6. change the parameters back to its default
