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Posted to commits@cassandra.apache.org by "Michał Szczygieł (JIRA)" <ji...@apache.org> on 2017/11/05 20:24:00 UTC
[jira] [Updated] (CASSANDRA-13958) [CQL] Inconsistent handling
double dollar sign for strings
[ https://issues.apache.org/jira/browse/CASSANDRA-13958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michał Szczygieł updated CASSANDRA-13958:
-----------------------------------------
Status: Patch Available (was: Open)
I'm not sure if it's the correct approach. I've just changed lexer to append all trailing dollars before the closing pair.
Branch: [https://github.com/mszczygiel/cassandra/tree/trunk-13958]
Build: [https://circleci.com/gh/mszczygiel/cassandra/tree/trunk-13958]
> [CQL] Inconsistent handling double dollar sign for strings
> ----------------------------------------------------------
>
> Key: CASSANDRA-13958
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13958
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Reporter: Hugo Picado
> Priority: Minor
>
> Double dollar signs is a [built-in method for escaping columns that may contain single quotes in its content](https://docs.datastax.com/en/cql/3.3/cql/cql_reference/escape_char_r.html). The way this is handled however is not consistent, in the sense that it allows for $ to appear in the middle of the string but not in the last char.
> *Examples:*
> Valid: insert into users(id, name) values(1, $$john$$)
> Inserts the string *john*
> Valid: insert into users(id, name) values(1, $$jo$hn$$)
> Inserts the string *jo$hn*
> Valid: insert into users(id, name) values(1, $$$john$$)
> Inserts the string *$john*
> Invalid: insert into users(id, name) values(1, $$john$$$)
> Fails with:
> {code}
> Invalid syntax at line 1, char 48
> insert into users(id, name) values(1, $$john$$$);
> {code}
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