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    I have imported some OSM data.

    And now I want split roads only as a tunnels from that.

    How to construct the expression which extract all elements from column “highway” and only these which are tunnels from column “tunnel” (they have string “yes” in “tunnel” column).

    Thank you,


    Hello Jacques,

    Thank you for your post.

    I just want to clarify what you are trying to do so I can make sure that I can provide the right information.

    1. You have a file that contains Attributes for “highway” and “tunnel”
    2. You want to select all Attributes that exist in the “highway” column and all attributes that have “yes” in the “tunnel” column

    Is that correct? This isn’t the right statement, but you are looking for something like SELECT * FROM HIGHWAY AND WHERE TUNNEL = “yes”. That sort of thing?

    Let me know and I will be able to help.

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