yunyad opened a new pull request, #3780:
URL: https://github.com/apache/texera/pull/3780
This PR introduces a new `Substring Search` operator that performs
substring-based matching on a string column, with optional case sensitivity.
### Motivation
Unlike the existing `KeywordSearch` operator which relies on Lucene
token-based parsing, this operator performs a raw substring match, making it
more suitable for exact or partial field matches where tokenization is not
desired.
### Changes
- Added `SubstringSearchOpDesc` extending `FilterOpDesc`, with three
parameters:
- `attribute`: target column to search
- `substring`: query substring
- `isCaseSensitive`: whether matching is case-sensitive
- Implemented `SubstringSearchOpExec` with string matching logic
- Registered the operator in the `SEARCH_GROUP` group with proper metadata
- Included an operator icon for UI integration
### Demo
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