fix: add nullability check for NamedStruct in builder - #104
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- if the struct is marked as NULLABLE raise an error - if the struct is defaulting to UNSPECIFIED, then make it REQUIRED Signed-off-by: MBWhite <whitemat@uk.ibm.com>
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I think named_struct builder should have the same check also if we're adding it here. |
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@tokoko yes - good idea.. thanks. Updated with a short test |
Signed-off-by: MBWhite <whitemat@uk.ibm.com>
Signed-off-by: MBWhite <whitemat@uk.ibm.com>
nielspardon
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LGTM
for the NamedStruct type the struct should always have NULLABILITY_REQUIRED when used for schemas and NamedStruct is currently only used for either the base schema (ReadRel) or the table schema (WriteRel, DdlRel, UpdateRel) within the Substrait specification:
// * When used to represent a relation schema, the outermost struct's
// nullability should be NULLABILITY_REQUIRED.
message NamedStruct {
// list of names in dfs order
repeated string names = 1;
Type.Struct struct = 2;
}
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Minor change, but useful to add defensive code where possible.
The NamedStruct for a ReadRel shouldn't be nullable. i.e. there must be some form of schema.
Adding in a simple check to the builders API.