Data Storage and Retrieval

Summary of Data Storage

// maximum index key value examined by this query
// for all entries, (entry.indexPath

endKey)

endKey:

, // optional

// excluded upper boundary of key range examined by query
// for all entries, (beginExclKey < entry.indexPath)
endExclKey :

, // optional

// returns non-nil to include entry in result
indexValidTest: func (

) begin ... end;, // optional

// returns non-nil to include entry in result
validTest: func (

) begin ... end; // optional

// optional tags query spec frame; see page 11-71
tagSpec: {equal:[

], all:[

],

any:[

],none:[

]},

// when non-nil, match entire string in 'words slot
entireWords:

, // optional

// string(s) to match w/ word beginnings in entries
words:

|[

,

, ... ,

], // optional

// string to match w/ any substring in entries
text:

, // optional

}

// this frame used for queries on multiple-slot indexes
// see previous example for single-slot query spec frame
{
// use the specified multiple-slot index for this query
indexPath : ['

'

...'

], // required

// minimum index key value examined by this query
// for all entries, (beginKey

entry.indexPath)

beginKey : [

,

...

], // optional

// excluded lower boundary of key range examined by query
// for all entries, (beginExclKey < entry.indexPath)
beginExclKey : [

,

...

], // optional

// maximum index key value examined by this query
// for all entries, (entry.indexPath

endKey)

endKey: [

,

...

], // optional

// excluded upper boundary of key range examined by query
// for all entries, (beginExclKey < entry.indexPath)
endExclKey : [

,

...

], // optional

// optional; returns non-nil to include entry in result
indexValidTest: func ([

,

...

])

begin ... end;,

// optional; returns non-nil to include entry in result
validTest: func (

) begin ... end;