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apply factor based on sampling

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javi 2015-11-23 15:19:46 +01:00
parent 7c2d0b353a
commit c660bc8fe7
1 changed files with 26 additions and 4 deletions
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30
lib/torque/provider/filterableJson.js
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@ -618,7 +618,9 @@ var Profiler = require('../profiler');
return f.nrows < 50000 && f.cost < 30000;
})
table = table.length ? table[0].table_name: this.options.overview_tables[this.options.overview_tables.length - 1]
this._getHistogramForTiles(varName, start, end, bins, tiles, table, own_filter, callback)
// get multiplicator factor from table name
var factor = (+_.last(table.split('_')));
this._getHistogramForTiles(varName, start, end, bins, tiles, table, own_filter, factor, callback)
}.bind(this));
},
@ -634,7 +636,7 @@ var Profiler = require('../profiler');
});
},
_getHistogramForTiles: function(varName, start, end, bins, tiles, table, own_filter, callback){
_getHistogramForTiles: function(varName, start, end, bins, tiles, table, own_filter, factor, callback){
var sql = [
'with source as (',
@ -709,6 +711,11 @@ var Profiler = require('../profiler');
this.sql(query, function (data) {
if (data) {
var rows = JSON.parse(data.responseText).rows;
// multiply by factor
rows.forEach(function(r) {
r.freq = r.freq * factor;
})
callback(rows);
} else {
callback(null);
@ -724,11 +731,23 @@ var Profiler = require('../profiler');
return f.nrows < 50000 && f.cost < 30000;
})
table = table.length ? table[0].table_name: this.options.overview_tables[this.options.overview_tables.length - 1]
this._getCategoriesForTiles(varName, tiles, table, callback)
var factor = (+_.last(table.split('_')));
this._getCategoriesForTiles(varName, tiles, table, factor, callback)
}.bind(this));
},
_getCategoriesForTiles: function(varName, tiles, table, callback){
_getCategoriesForTiles: function(varName, tiles, table, factor, callback){
/*var sql = [
'SELECT CAST(category AS text), value, false as agg, nulls_count, min_val, max_val, count, categories_count',
' FROM categories, summary, categories_summary',
' WHERE rank < {{=it._limit}}',
'UNION ALL',
'SELECT \'Other\' category, sum(value), true as agg, nulls_count, min_val, max_val, count, categories_count',
' FROM categories, summary, categories_summary',
' WHERE rank >= {{=it._limit}}',
'GROUP BY nulls_count, min_val, max_val, count, categories_count'
]*/
var sql = [
'select {varName} category, count(1) as "value" from {table} {tiles} where {bounds} {filters} group by 1 order by 2 desc limit {num_cats}',
@ -765,6 +784,9 @@ var Profiler = require('../profiler');
this.sql(query, function (data) {
if (data) {
var rows = JSON.parse(data.responseText).rows;
rows.forEach(function(r) {
r.value = factor * r.value;
});
callback(rows);
} else {
callback(null);