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Summarize the Values in a String
The built-in Text Search feature of Vertica allows you to quickly search the contents of a single CHAR, VARCHAR, LONG VARCHAR, VARBINARY, or LONG VARBINARY field within a table to locate a specific keyword. Included with Text Search are several pre-configured tokenizers. One of the most useful tokenizer splits string data into rows via a specified delimter. This cool feature opens the door to do interesting things like summing a list of integers.
dbadmin=> SELECT * FROM test; add_these ----------- 10,20,30 5,4,100 1,-1,1 (3 rows) dbadmin=> SELECT input add_these, SUM(words::INT) FROM (SELECT v_txtindex.StringTokenizerDelim(add_these,',') OVER () FROM test) foo GROUP BY input; add_these | SUM -----------+----- 1,-1,1 | 1 5,4,100 | 109 10,20,30 | 60 (3 rows)