branch-4.0: [Feature](func) Support function EXPORT_SET #56798 #57294
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`EXPORT_SET` is used to convert each bit of an integer into a specified string and concatenate them into a result string. For each bit in `bits` that is 1, the corresponding position in the result will display the `on` string; for each bit that is 0, the `off` string will be displayed. The bits are checked in order from right to left (i.e., from the least significant bit to the most significant bit), but concatenated into the result string from left to right. The bits are separated by the `separator` (default is a comma `,`). ```text mysql> SELECT EXPORT_SET(5, '1', '0'); +---------------------------------------------------------------------------------------------------------------------------------+ | EXPORT_SET(5, '1', '0') | +---------------------------------------------------------------------------------------------------------------------------------+ | 1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 | +---------------------------------------------------------------------------------------------------------------------------------+ mysql> SELECT EXPORT_SET(-1, '1', '0', ','); +---------------------------------------------------------------------------------------------------------------------------------+ | EXPORT_SET(-1, '1', '0', ',') | +---------------------------------------------------------------------------------------------------------------------------------+ | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 | +---------------------------------------------------------------------------------------------------------------------------------+ mysql> SELECT EXPORT_SET(5, '1', '0', '|', 5); +---------------------------------+ | EXPORT_SET(5, '1', '0', '|', 5) | +---------------------------------+ | 1|0|1|0|0 | +---------------------------------+ mysql> SELECT EXPORT_SET(5, 'apache', 'doris', '123', 5); +--------------------------------------------+ | EXPORT_SET(5, 'apache', 'doris', '123', 5) | +--------------------------------------------+ | apache123doris123apache123doris123doris | +--------------------------------------------+ ```
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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run buildall |
yiguolei
approved these changes
Oct 24, 2025
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Cherry-picked from #56798