Automatic columns selector for joins function - #168
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Find out common columns between the 2 datasets and use the common columns in them as column-selector This change introduces a new arity in left-join function
genmeblog
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Sep 3, 2024
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You don't have to change api.clj file since it's generated. https://github.com/scicloj/tablecloth/blob/master/src/tablecloth/api/api_template.clj#L182
genmeblog
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Sep 3, 2024
| (multi-join impl ds-left ds-right cols-left cols-right options)))) | ||
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| (defn- automatic-columns-selector [ds-left ds-right] | ||
| (let [cols-l (set (column-names ds-left :all)) |
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| (defn- automatic-columns-selector [ds-left ds-right] | ||
| (let [cols-l (set (column-names ds-left :all)) | ||
| cols-r (set (column-names ds-right :all))] |
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thanks, should I revert the changes in that ns completely? or its ok to leave what changes are there? |
pcbldi
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September 16, 2024 20:44
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very useful, I was thinking about requesting this as well,as such common case. |
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This changes introduces an automatic column selector as discussed in #133 .
All the common columns in two datasets are used as the column selectors.