queryThis query will be run to produce the columns.StoredQuery (required)
excludeOne of more regular expressions that will exclude columns.list of string
includeOne of more regular expressions that will include columns.list of string


Select columns from another query using regex.

Sometimes a query produces a large number of columns or unpredictable column names (eg. the read_reg_key() plugin produces a column per value name).

You can use the column_filter() plugin to select a subset of the columns to include or exclude from an underlying query. For example:

SELECT * FROM column_filter(
   SELECT 1 AS A, 2 AS B, 3 AS AB, 4 AS AA
   FROM scope()
}, include="A", exclude="B")

will include columns with the letter A in their name and remove columns with the letter B (so it will have A and AA above).

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