### What problem does this PR solve?
Incorrect retrieval total count with pagination enabled.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Add OceanBase doc engine. Close#5350
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: concat images in word document. Partially solved issues in #11063
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: OpenSearch retrieval no return #11006
Add documentation #11072
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Documentation Update
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
Co-authored-by: writinwaters <93570324+writinwaters@users.noreply.github.com>
### What problem does this PR solve?
Fix: opensearch retrieval error #10828
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
- rename rmSpace to remove_redundant_spaces
- move clean_markdown_block to common module
- add unit tests for remove_redundant_spaces and clean_markdown_block
### Type of change
- [x] Refactoring
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
Fix: parsing excel with chartsheet #10815
Fix: Clamp begin to a minimum of 0 to prevent negative indexing #10804
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: prio synonym match than wordnet for english
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Don't need rerank for infinity since Infinity normalizes each way score
before fusion.
### Type of change
- [x] Refactoring
### What problem does this PR solve?
Added "怎么办" to the regex pattern in rmWWW method to improve query
cleaning by removing this common question phrase along with other
question words.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add tree_merge for law parsers, significantly outperforming
hierarchical_merge, solved: #8637
1. Add tree_merge for law parsers, include build_tree and get_tree by
dfs.
2. add Copyright statement for helath_utils
### Type of change
- [x] Documentation Update
- [x] Performance Improvement
### What problem does this PR solve?
Dataflow supports Spreadsheet and Word processor document
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
#9082#6365
<u> **WARNING: it's not compatible with the older version of `Agent`
module, which means that `Agent` from older versions can not work
anymore.**</u>
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fixes no chunks parsed out for Law. #5113
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
1. Remove the useless pop logic due to already been checked at the if
logic
2. merge log logic
### Type of change
- [x] Refactoring
### What problem does this PR solve?
Fix the restriction of forcing similarity_threshold=0 and page_size=30
when doc_ids is not empty
#8228
---------
Co-authored-by: shiqing.wusq <shiqing.wusq@dtzhejiang.com>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Fix unnecessary truncation in markdown parser. So that markdown can work
perfectly like
[this](https://github.com/infiniflow/ragflow/issues/7824#issuecomment-2921312576)
in #7824, supporting multiple special delimiters.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Add advanced delimiter detection for naive merge. #7824
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Change citation mark as [ID:n], it's easier for LLMs to follow the
instruction :) #7904
### Type of change
- [x] Refactoring
