This topic will describe the comments in nGQL.
Legacy version compatibility¶
- In Nebula Graph 1.0, there are four comment styles:
- In Nebula Graph 2.0,
--represents an edge pattern and cannot be used as comments.
nebula> # Do nothing in this line nebula> RETURN 1+1; # This comment continues to the end of this line. nebula> RETURN 1+1; // This comment continues to the end of this line. nebula> RETURN 1 /* This is an in-line comment. */ + 1 == 2; nebula> RETURN 11 + \ /* Multi-line comment. \ Use a backslash as a line break. \ */ 12;
In nGQL statement, the backslash
\ in a line indicates a line break.
- In nGQL, you must add a
\at the end of every line, even in multi-line comments
- In openCypher, there is no need to use a
\as a line break.
/* openCypher style: The following comment spans more than one line */ MATCH (n:label) RETURN n;
/* nGQL style: \ The following comment \ spans more than \ one line */ \ MATCH (n:tag) \ RETURN n;
Last update: July 13, 2021