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Add support for "fossil deltas" to RBU and "sqldiff --rbu".

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FossilOrigin-Name: e26ef165fe2f7524684af0d269d38475ea8b9489
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dan
2015-07-31 19:52:03 +00:00
parent 8ff2587b66
commit a9ca8afef5
6 changed files with 773 additions and 23 deletions
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8
ext/rbu/sqlite3rbu.h
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@ -189,6 +189,14 @@
**
** UPDATE t1 SET c = rbu_delta(c, 'usa') WHERE a = 4;
**
** Finally, if an 'f' character appears in place of a 'd' or 's' in an
** ota_control string, the contents of the data_xxx table column is assumed
** to be a "fossil delta" - a patch to be applied to a blob value in the
** format used by the fossil source-code management system. In this case
** the existing value within the target database table must be of type BLOB.
** It is replaced by the result of applying the specified fossil delta to
** itself.
**
** If the target database table is a virtual table or a table with no PRIMARY
** KEY, the rbu_control value should not include a character corresponding
** to the rbu_rowid value. For example, this: