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How does qTags work


for an extension we try to determine if a column has text or numeric values or both to determine if we need to select string or number values.

We tried to use the qTags field but ran into some odd behaviour. The documentation does not give a lot of information what this field actually is and how its computed.

The script

LOAD * Inline [

A, B, C

38788010, I2040407, ABC

38788010, 38788010


will create 3 columns with A having $numeric and $integer qTags, B having no qTags and C having $ascii and $text qTags.

I would have expected that B has all 4 options.

Does anyone have any pointers where qTags is explained?

1 Reply
Partner - Contributor III
Partner - Contributor III

Hi Aggotwald,

Did you ever get an answer to this great question? Been trying to decifer the exact same Qlik enigma myself with no one shedding any light.