Fix #358 case-insensitive filter

__tests__/lib/pg/odata-string-functions.test.js

@@ -178,5 +178,12 @@ describe.each(suiteEnvironments)(
  expect.arrayContaining([expect.objectContaining({ name: 'Schönramer Hell' })])
  )
  })
+
+ test('case-insensitive', async () => {
+ const response = await request.get(`/beershop/Beers?$filter=contains(name,'bi')`)
+ expect(response.status).toStrictEqual(200)
+ expect(response.body.value.length).toEqual(7)
+ expect(response.body.value).toEqual(expect.arrayContaining([expect.objectContaining({ name: 'Bitter 42' })]))
+ })
  }
 )

lib/pg/sql-builder/FunctionBuilder.js

@@ -71,6 +71,17 @@ class PGFunctionBuilder extends FunctionBuilder {
  this._outputObj.sql.push(')')
  }
  }
+
+ _createLikeComparisonForColumn(not, left, right) {
+ if (not) {
+ this._outputObj.sql.push('(', left, 'IS NULL', 'OR')
+ }
+
+ this._outputObj.sql.push(left, `${not}ILIKE`) // This 'ILIKE' change case-sensitive issue #358.
+ this._addFunctionArgs(right, true, ' || ')
+ this._outputObj.sql.push('ESCAPE', "'^'")
+ if (not) this._outputObj.sql.push(')')
+ }
 }
 
 module.exports = PGFunctionBuilder