[FLINK] Support regular expressions
Open
enhancement
- Dominant language
- Scala
- Stars
- 1.6k
- Forks
- 657
- Avg merge
- 2d 21h
- Merged PRs (30d)
- 85
Description
### Description
FROM_UNIXTIME
DATE_FORMAT
UNIX_TIMESTAMP
HOUR
DAY
YEAR
TO_TIMESTAMP
PROCTIME
unix_timestamp
concat
Json_Value
TO_DATE
TO_TIMESTAMP_LTZ
SUBSTRING
CURRENT_DATE
FROM_BASE64
COALESCE
ifnull
TIMESTAMPADD
LOCALTIMESTAMP
### Gluten version
None
Contributor guide
Research direction
The issue names no files, tests, or entry points; it only lists SQL-related functions and requests regular-expression support. First locate the existing function-support or compatibility mapping in the Gluten codebase, then identify how regex behavior should be specified and tested before implementation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala, sql
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100