LuciferYang opened a new issue, #9782: URL: https://github.com/apache/paimon/issues/9782
The three string-to-collection cast rules share a mini-language where quotes group a token across separators. `StringToArrayCastRule` and `StringToRowCastRule` now remember whether a token was quoted, so `""` yields the empty string and `"null"` yields the four-character string rather than SQL NULL. `StringToMapCastRule` still cannot do either. Its splitter works at the entry level (`k -> v, k2 -> v2`) and hands each entry to `ENTRY_PATTERN` to separate key from value, so by the time `parseValue` runs, the quote state of the individual key or value is gone. `"" -> a` loses the empty key and `k -> "null"` becomes a null value. Fixing it needs quote-aware key/value splitting inside an entry rather than a regex over the already-stripped text, which is why it was left out of the array and row change. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
