If this was in an ExtractText processor, your regular expression may have included groups (segments contained in “()”) — if this is the case, each group will be extracted and captured as well.
From the ExtractText documentation: > The first capture group, if any found, will be placed into that attribute > name.But all capture groups, including the matching string sequence itself > will also be provided at that attribute name with an index value provided, > with the exception of a capturing group that is optional and does not match - > for example, given the attribute name "regex" and expression "abc(def)?(g)" > we would add an attribute "regex.1" with a value of "def" if the "def" > matched. If the "def" did not match, no attribute named "regex.1" would be > added but an attribute named "regex.2" with a value of "g" will be added > regardless. Andy LoPresto [email protected] [email protected] PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4 BACE 3C6E F65B 2F7D EF69 > On Mar 6, 2017, at 4:26 PM, srini <[email protected]> wrote: > > Why, > I have a attribute called original_flowfile, but I noticed these two extra > got created. Why? > > original_flowfile.0 > original_flowfile.1 > > thanks > Srini > > > > -- > View this message in context: > http://apache-nifi-developer-list.39713.n7.nabble.com/I-have-attribute-called-X-But-X-0-and-X-1-also-got-created-Why-tp15062.html > Sent from the Apache NiFi Developer List mailing list archive at Nabble.com.
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