FTS4 匹配信息不适用于 android 房间数据库

Question

我在 FTS 虚拟 table 中有两列（name 和 description），我想使用 [=16= 优先考虑 FTS 中的 name 列] 函数，但在 android 中有空间，我收到以下错误：

Error retrieving data from table.: unable to use function matchinfo in the requested context (code 1 SQLITE_ERROR)

这是我的查询：

@Query("""select workout_cache.id, workout_cache.met, workout_cache.name, workout_cache.workoutDescription, matchinfo(workout_cache_fts, 'pcs') as mi
from workout_cache join workout_cache_fts on workout_cache.id = workout_cache_fts.id 
where workout_cache_fts match :text group by workout_cache.id""")
abstract suspend fun query(text: String): List<WorkoutCacheEntityWithMatchInfo>

我的WorkoutCacheEntityWithMatchInfoclass

class WorkoutCacheEntityWithMatchInfo(
    @Embedded
    val workout: WorkoutCacheEntity,
    @ColumnInfo(name = "mi")
    val matchInfo: ByteArray
)

UPDATE: It's working fine when I don't use join clause.

Answer 1

这很愚蠢。我刚刚删除了 group by 子句并且它起作用了。

此处更新道：

@Query("""select workout_cache.id, workout_cache.met, workout_cache.name, workout_cache.workoutDescription, matchinfo(workout_cache_fts, 'pcs') as mi
from workout_cache join workout_cache_fts on workout_cache.id = workout_cache_fts.id 
where workout_cache_fts match :text""")
abstract suspend fun query(text: String): List<WorkoutCacheEntityWithMatchInfo>

FTS4 匹配信息不适用于 android 房间数据库

FTS4 matchinfo not working with android room database

android

kotlin

android-sqlite

android-room