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Table schema #27

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VEZY opened this issue Oct 12, 2023 · 1 comment
Open

Table schema #27

VEZY opened this issue Oct 12, 2023 · 1 comment

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@VEZY
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VEZY commented Oct 12, 2023

Add a way to compute a reliable schema for the table.
Put it into the table struct ? It could be used to check the columns types, or to make unions of types in the schema.

The issue right now is that we can have two rows with a different type for a value (e.g. A = nothing and A = 1.0), but the column will be whatever the type of the value in the first row. This is very bad!
@VEZY
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VEZY commented Oct 12, 2023 •
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Hint: see how DataFrames do it.

Maybe with a Tables.columns(t) because we have a NamedTuple iterator anyway ?

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