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Splitting a String into Rows
[Deleted User] Administrator
This tip was authored by Jim Knicely.
The Vertica text search feature includes a handy function named StringTokenizerDelim that you can use to split a string into rows by a given delimiter.
dbadmin=> SELECT * FROM test; c1 | c2 ----+------- 1 | A|B|C 2 | D|E|F (2 rows) dbadmin=> SELECT c1, words FROM (SELECT c1, StringTokenizerDelim(c2, '|') OVER (PARTITION BY c1 ORDER BY c1) dbadmin(> FROM test) foo dbadmin-> ORDER BY 1, 2; c1 | words ----+------- 1 | A 1 | B 1 | C 2 | D 2 | E 2 | F (6 rows)