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Chore: export arrow dataframe utilities (#22016)

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* export arrow dataframe

* use the same table
This commit is contained in:
Ryan McKinley 2020-02-08 09:50:35 +01:00 committed by GitHub
parent f48169633c
commit d0470409d6
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2 changed files with 8 additions and 4 deletions
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8
packages/grafana-data/src/dataframe/ArrowDataFrame.ts
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@ -112,7 +112,13 @@ function toArrowVector(field: Field): ArrowVector {
} }
export function grafanaDataFrameToArrowTable(data: DataFrame): Table { export function grafanaDataFrameToArrowTable(data: DataFrame): Table {
const table = Table.new( // Return the original table
let table = (data as any).table;
if (table instanceof Table) {
return table as Table;
}
table = Table.new(
data.fields.map(field => { data.fields.map(field => {
const column = Column.new(field.name, toArrowVector(field)); const column = Column.new(field.name, toArrowVector(field));
if (field.labels) { if (field.labels) {

4
packages/grafana-data/src/dataframe/index.ts
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@ -4,6 +4,4 @@ export * from './CircularDataFrame';
export * from './MutableDataFrame'; export * from './MutableDataFrame';
export * from './processDataFrame'; export * from './processDataFrame';
export * from './dimensions'; export * from './dimensions';
export * from './ArrowDataFrame';
// Phantom JS :(
//export * from './ArrowDataFrame';