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Distinct support for null (#4559)

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* distinct support for null

* better testing
This commit is contained in:
Diamond Lewis
2018-02-16 09:44:42 -06:00
committed by Florent Vilmart
parent cac14bce09
commit 848a6cf7ae
3 changed files with 41 additions and 10 deletions
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10
src/Adapters/Storage/Postgres/PostgresStorageAdapter.js
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@@ -1464,7 +1464,8 @@ export class PostgresStorageAdapter implements StorageAdapter {
debug('distinct', className, query);
let field = fieldName;
let column = fieldName;
if (fieldName.indexOf('.') >= 0) {
const isNested = fieldName.indexOf('.') >= 0;
if (isNested) {
field = transformDotFieldToComponents(fieldName).join('->');
column = fieldName.split('.')[0];
}
@@ -1480,7 +1481,10 @@ export class PostgresStorageAdapter implements StorageAdapter {
const wherePattern = where.pattern.length > 0 ? `WHERE ${where.pattern}` : '';
const transformer = isArrayField ? 'jsonb_array_elements' : 'ON';
const qs = `SELECT DISTINCT ${transformer}($1:raw) $2:raw FROM $3:name ${wherePattern}`;
let qs = `SELECT DISTINCT ${transformer}($1:name) $2:name FROM $3:name ${wherePattern}`;
if (isNested) {
qs = `SELECT DISTINCT ${transformer}($1:raw) $2:raw FROM $3:name ${wherePattern}`;
}
debug(qs, values);
return this._client.any(qs, values)
.catch((error) => {
@@ -1490,7 +1494,7 @@ export class PostgresStorageAdapter implements StorageAdapter {
throw error;
})
.then((results) => {
if (fieldName.indexOf('.') === -1) {
if (!isNested) {
results = results.filter((object) => object[field] !== null);
return results.map(object => {
if (!isPointerField) {