我正在使用带有websql适配器的PouchDB或一个cordova应用程序(我正在使用sqlite插件). 注：这个数据库是完全本地的,我不需要它同步. 对于我的特定应用程序(数据库用于跟踪API调用),我可以多
注：这个数据库是完全本地的,我不需要它同步.
对于我的特定应用程序(数据库用于跟踪API调用),我可以多次更新同一文档.
在删除文档并压缩数据库之后,我的数据库仍在增长.
我在删除文档后尝试压缩,尽管它有所不同 – 仍然保存了修订版本的记录 – 所以我的数据库仍然无限增长.
如何阻止数据库无限增长？
删除(通过设置doc._deleted = true然后设置db.put(doc))和压缩似乎不起作用.
请参阅下面的一条记录,即使我删除它并压缩数据库,它仍会随着所有修订而继续增长：
{
"id": "STATUS_TYPE_WEB_BROADCAST_RESULT_APICALL_5",
"deleted": true,
"rev_tree": [
{
"pos": 1,
"ids": [
"561567a6abccf9e25063be1cff906862",
{
"status": "missing"
},
[
[
"76a29a5ea586f54b86d9f7671fa0938a",
{
"status": "missing"
},
[
[
"00945a90f36790a6e25c3c8c99ecb008",
{
"status": "missing",
"deleted": true
},
[
[
"1844208b140a98fe83ccf547f3da1516",
{
"status": "missing"
},
[
[
"dd56c4b8dfae01cf3eabfad3ea21bf84",
{
"status": "missing"
},
[
[
"9152aac8de2c87c2265cc34ef1e992a9",
{
"status": "missing",
"deleted": true
},
[
[
"6ac6a3e5593250b2f6f3b9de5f2b80d0",
{
"status": "missing"
},
[
[
"1c400fcbabe3fe9ee6b923e99ab87b3e",
{
"status": "missing"
},
[
[
"6d3b88e73b6f880152f4e0418ab3a67d",
{
"status": "missing",
"deleted": true
},
[
[
"b2af3344fd9888653777e24bfd15dae4",
{
"status": "missing"
},
[
[
"d70cd32d571868ee2a49b14eb9ff3cf1",
{
"status": "missing"
},
[
[
"3ece08f0894f93859915812aba9d294b",
{
"status": "missing",
"deleted": true
},
[
[
"7f31761497f509e6e5b0815b659405dd",
{
"status": "missing"
},
[
[
"c3db1ae3c411389ac9e099c5739420af",
{
"status": "missing"
},
[
[
"a0c86c197187b210a4030742da03416c",
{
"status": "missing",
"deleted": true
},
[
[
"d89180025074fc48c28fbc785e034218",
{
"status": "missing"
},
[
[
"00eb69a55afea63ac30b9fa9038e3f1e",
{
"status": "missing"
},
[
[
"b8c051e94c65e485b2129464b0b4830b",
{
"status": "missing",
"deleted": true
},
[
[
"2832699d4da2bec534a129ade793bcb8",
{
"status": "missing"
},
[
[
"f8314cb28d7d7466b7e15ff7756f703a",
{
"status": "missing"
},
[
[
"398e27cf400f815c04eb5059900949d8",
{
"status": "missing",
"deleted": true
},
[
[
"747af489d66690927251e71ad4608500",
{
"status": "missing"
},
[
[
"4f2766536562894054c6220ef84fb782",
{
"status": "missing"
},
[
[
"536677ee9decf93b77d2d4b2a4243936",
{
"status": "missing",
"deleted": true
},
[
[
"82d9b89e3ac956f5bc64d27a32ba3d5b",
{
"status": "missing"
},
[
[
"23fe3cfd7bce5a6e0d279c708dc3565c",
{
"status": "missing"
},
[
[
"3c7f3d5b774f0549ca3c80700e84e074",
{
"status": "missing",
"deleted": true
},
[
[
"5b0db6e212bbf58e4d162389dc67800b",
{
"status": "missing"
},
[
[
"94b5b06de69d7b02bfa0800a4a895113",
{
"status": "missing"
},
[
[
"bb35cf47fa3da85eb2941c667c7ab40e",
{
"status": "missing",
"deleted": true
},
[
[
"432ea39039c355f9b1512c40b237ec38",
{
"status": "missing"
},
[
[
"f09f2f15dde4bd327f20c1beabc2ae13",
{
"status": "missing"
},
[
[
"b4a21b8562c085e0a2a91ca9ba5e6385",
{
"status": "available",
"deleted": true
},
[]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
]
}
],
"seq": 230
}
我通过在pouchDb的github：
link to github issue上打开一个问题得到了答案.
以下是github上@daleyharvey的答案.正如您所看到的,主要的是在我的初始化中添加revs_limit：1.这阻止了我的数据库不受限制地增长.
新的PouchDB(‘name’,{revs_limit：1,auto_compaction：true})应该做你想要的,revs_limit是我们跟踪的修订数量(这是你看到的)压缩删除那些修订的内容
就像一个侧面说明,对于我的用例,我最终发现在最终端不需要使用PouchDB等高级数据库 – 我需要普通的WebSQL或本地存储.