I would like to disable some lines in the 'Select by expression' dialog (QGIS 2.6) but I can't find whether it is possible or not, and if yes, how to achieve that.

I have tried several characters such as /, //, /*, #, REM.

Note that /* and REM transform the line into green text, which seems to be disabled, but the query result is empty and I get in invalid expression error below the query field.

  • I don't think the 'commenting-out' feature is fully implmented even though it may visually look like it is. Hopefully others can confirm this as I have not looked at the source code.
    – Joseph
    Jan 26, 2015 at 10:56

1 Answer 1


Not in 2.6 but in 2.8 comments have been implemented as a new feature in expressions.

  • Goog thing indeed! Is v2.8 expected soon? Nothing about that on official QGIS website.
    – wiltomap
    Jan 26, 2015 at 12:58

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