Bug: REL TABLE GROUP: Error: Parser exception: Invalid input <, FROM>: expected rule kU_CreateRelTableGroup (caused by whitespace)

[sapalli2989]

Kùzu version

v0.4.2

What happened?

CREATE REL TABLE GROUP X (...) causes

Error: Parser exception: Invalid input <, FROM>: expected rule kU_CreateRelTableGroup (line: 1, offset: 257)

, despite being syntactically correct. It turns out to be a problem with whitespaces surrounding terms defined within parentheses.

Are there known steps to reproduce?

CREATE NODE TABLE V1 (id UUID, PRIMARY KEY (id));
CREATE NODE TABLE V2 (id UUID, PRIMARY KEY (id));

// auto-generated statement
// This caused error
CREATE REL TABLE GROUP has (
                            FROM V1
                            TO V1
                            ,
                            FROM V1
                            TO V2
                            ,
                            FROM V2
                            TO V2
                            , ONE_MANY);

// corresponds to (and also causes error)
CREATE REL TABLE GROUP has (  FROM V1  TO V1  ,  FROM V1  TO V2  ,  FROM V2  TO V2  , ONE_MANY);

// removing trailing whitespace after `TO <table>` works
CREATE REL TABLE GROUP has (  FROM V1  TO V1,  FROM V1  TO V2,  FROM V2  TO V2, ONE_MANY);

[andyfengHKU]

This should be fixed in #3549