Unit test in iOS
func test() throws {
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Database.log.console.level = .verbose
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let q = QueryBuilder
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.select([SelectResult.property("owner.username").as("owner")])
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.from(DataSource.database(db))
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let rs = try q.execute()
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let res = rs.allResults()
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print(res.count)
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}
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Logs
2019-11-25 22:18:45.399135-0800 xctest[76786:4880045] CouchbaseLite Query Info: {Query#1} Compiling JSON query: {"WHAT":[["AS",[".owner.username"],"owner"]]}
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2019-11-25 22:18:45.399766-0800 xctest[76786:4880045] CouchbaseLite Query Info: {Query#1} Compiled as SELECT fl_result(fl_nested_value("owner", 'username')) AS "owner" FROM kv_default AS _doc WHERE (_doc.flags & 1 = 0)
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2019-11-25 22:18:45.399961-0800 xctest[76786:4880045] CouchbaseLite Database ERROR: SQLite error (code 28): double-quoted string literal: "owner"
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Result
When created a SelectResult with alias "owner"(assuming same as the column name, not happening with random string like "something", "any"), it is returning SQLite error.
CouchbaseLite Database ERROR: SQLite error (code 28): double-quoted string literal: "owner"
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For completeness, here are some additional details of the issue and cases under which it fails :
+Sample Document +
{
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"created": "2018-05-06T02:34:18",
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"id": "ff88b2b7-5afb-4b27-8aca-e7ad50e4ac7d",
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"modified": "2018-09-11T10:39:33",
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"name": "Playlist # 1 for Nellie",
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"owner": {
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"firstName": "Nellie",
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"lastName": "Henry",
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"picture": {
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"large": "https://randomuser.me/api/portraits/women/69.jpg",
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"medium": "https://randomuser.me/api/portraits/med/women/69.jpg",
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"thumbnail": "https://randomuser.me/api/portraits/thumb/women/69.jpg"
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},
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"title": "Ms",
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"username": "abacusesthronging42801"
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},
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"tracks": [
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"3342EDAB4B2F688FDF8D1E00DC9DB60FBEDD1334",
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"26ECEDD91645E9D8F856FD52FEB20CF70F1056A6",
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"17272A29F039A615A3BF874FD215831F21F9B5A6",
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"5EE3E30773C4DDAEEE7689B77DB1F4201BF8567F",
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"1CD8A504C681EC2465CD1040D227AC6606472378",
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"77D9D84146AB3C5618458FE8990B94A17F1A06D4",
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"4E8F8C84068492B78EA5F2812CC9F31EA0610DCA",
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"99A6A67ECFC090F574C071C60C6B16B4E02A9119",
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"1298D078AE07D841F0F34F088AB61BFFD3703D78",
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"B50D40495911737113C09EA15DD6E520C1D74699"
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],
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"type": "playlist",
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"ver": "2.0",
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"visibility": "PUBLIC"
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}
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+Query #1 (Same as what is indicated above in unit test) +
let selectResults = [
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SelectResult.expression(Meta.id),
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SelectResult.property("type"),
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SelectResult.property("name"),
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SelectResult.property("owner.username").as("owner")
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]
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let datasource: DataSourceAs = DataSource.database(database)
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let whereExp: ExpressionProtocol = Expression.property("type").equalTo(Expression.string("playlist"))
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let orderBy: OrderingProtocol = Ordering.property("modified").descending()
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let limit: ExpressionProtocol = Expression.int(100)
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let searchQuery: Query = QueryBuilder
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.select(selectResults)
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.from(datasource)
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.where(whereExp)
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.orderBy(orderBy)
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.limit(limit)
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CouchbaseLite Database ERROR: SQLite error (code 28): double-quoted string literal: "owner"
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+Query #2 (The following Select Expressions result in the same error below ) +
let selectResults = [
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SelectResult.expression(Meta.id),
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SelectResult.property("type").as("type"),
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SelectResult.property("name"),
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SelectResult.property("owner.username")
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]
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CouchbaseLite Database ERROR: SQLite error (code 1): no such column: type in "SELECT fl_result(_doc.key), fl_result(type) AS "type", fl_result(fl_value(_doc.body, 'name')), fl_result(fl_value(_doc.body, 'owner.username')) FROM kv_default AS _doc WHERE (type = 'playlist') AND (_doc.flags & 1 = 0) ORDER BY fl_value(_doc.body, 'modified') DESC LIMIT MAX(0, 100)"
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+Query #3 (The following Select Expressions work ) +
let selectResults = [
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SelectResult.expression(Meta.id),
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SelectResult.property("type"),
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SelectResult.property("name"),
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SelectResult.property("owner.username").as("username")
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]
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let selectResults = [
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SelectResult.expression(Meta.id),
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SelectResult.property("type").as("typeVal"),
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SelectResult.property("name"),
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SelectResult.property("owner.username")
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]
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Bug
Critical