如何处理Postgres全文搜索中的错字错误

Question

我想使用Postgres中的全文本搜索来搜索某些文本 这是我的查询示例

select name, artist, texte
from testsearch
where to_tsvector(texte) @@ to_tsquery('randomname');

它只给我完全匹配'randomname'的结果，我希望它也匹配'ran'，'rand'radom'等...

Answer 1

select name, artist, texte
from testsearch
where to_tsvector(texte) @@ to_tsquery('rand:*');

Answer 2

尝试

merged <- merge(x = dt, y = dt2, by= "id", all.x = TRUE)
merged[!is.na(merged$val.y), ]$val.x <- paste0(
  merged[!is.na(merged$val.y), ]$val.x, ".",
  merged[!is.na(merged$val.y), ]$val.y)
merged[, val.y := NULL]
setnames(x = merged, old = "val.x", new = "val")
merged