ES|QL REVERSE function
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Serverless
Generally available
Stack
Generally available
Returns the input string in reverse order.
str-
String expression. If
null, the function returnsnull.
Returns a new string representing the input string in reverse order.
| str | result |
|---|---|
| keyword | keyword |
| text | keyword |
ROW message = "Some Text" | EVAL message_reversed = REVERSE(message);
| message:keyword | message_reversed:keyword |
|---|---|
| Some Text | txeT emoS |
REVERSE works with unicode, too! It keeps unicode grapheme clusters together during reversal.
ROW bending_arts = "💧🪨🔥💨" | EVAL bending_arts_reversed = REVERSE(bending_arts);
| bending_arts:keyword | bending_arts_reversed:keyword |
|---|---|
| 💧🪨🔥💨 | 💨🔥🪨💧 |