Because Oracle versions below Oracle21 do not support null as an
operator, and considering that most users' Oracle versions are below
Oracle21, we disable Oracle's null operator pushdown by default.
pick (#41563)
cherry-pick #40948
Like mysql, json_search returns the path which point to a json string
witch match the pattern.
`SELECT JSON_SEARCH('["A",[{"B":"1"}],{"C":"AB"},{"D":"BC"}]', 'one',
'A_') as res;`
```
+----------+
| res |
+----------+
| "$[2].C" |
+----------+
```
Co-authored-by: liutang123 <liulijia@gmail.com>
bp #40225 , #40888 ,#41386
## Proposed changes
Among them, #40225 is the new api of mc,
#40888 is used to fix the bug when reading null between the new and old
apis,
#41386 is used for compatibility between the new and old versions
bp #41497
before #21790
## Proposed changes
This PR unifies the duplicate parts of `catalog tvf` and `show
catalogs`, adds permission check when querying `catalog tvf`, and hides
sensitive information.
pick from master #40819
when do merge, we should update target requestPropertiesMap ONLY IF the
cost of source's request property lower than target one. Otherwise, the
requestPropertiesMap will not sync with lowestCostTable. Then, we will
get wrong output property when get the final plan.
pick #40891
This PR makes the following changes to the uppercase and lowercase
mapping of JdbcCatalog
1. The identifierMapping is managed by JdbcExternalCatalog instead of
JdbcClient to better control its lifecycle
2. The identifierMapping no longer loads remoteName alone, but Catalog
controls the loading uniformly
3. The identifierMapping will be loaded when each FE performs
makeSureInitialized() to ensure that each FE has a mapping
4. The initialization of mapping will only be performed once in
makeSureInitialized(), which means that even if you use metaCache, if
your source data is updated when identifierMapping is enabled, you must
refresh the catalog to query normally.
5. The identifierMapping is only responsible for the properties of the
Catalog and is no longer affected by the fe config, simplifying the
processing logic
6. If lower_case_mete_names is false and meta_names_mapping is empty in
the catalog properties, the identifierMapping will no longer take
effect, further enhancing the stability of the default settings
7. The JdbcClient is no longer closed during onRefreshCache, reducing
the repeated creation of resources, improving reuse, and reducing the
leakage of some global shared threads
cherry-pick： https://github.com/apache/doris/pull/40820
example: select append_trailing_char_if_absent('it','a') would return
null in original design, it can not return null when folding constant on
fe any time
pick from master #40801
This PR simplifies the handling of `ScanNode` projection logic.
Previously, the code included multiple conditional checks to determine
whether a `projectionTuple` should be generated. These conditions have
been removed, and now `projectionTuple `is always generated for
`ScanNode`, ensuring a consistent projection setup. Additionally,
redundant handling of `SlotId` and `SlotRef` has been eliminated, making
the code cleaner and easier to maintain. The behavior for `OlapScanNode`
remains unchanged.
