7e36109b3c
This API (unexported) will estimate the amount of memory needed to execute a search query over an index before the collector begins data collection. Sample estimates for certain queries: {Size: 10, BenchmarkUpsidedownSearchOverhead} ESTIMATE BENCHMEM TermQuery 4616 4796 MatchQuery 5210 5405 DisjunctionQuery (Match queries) 7700 8447 DisjunctionQuery (Term queries) 6514 6591 ConjunctionQuery (Match queries) 7524 8175 Nested disjunction query (disjunction of disjunctions) 10306 10708 …
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package document
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import (
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"reflect"
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"github.com/blevesearch/bleve/analysis"
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)
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var reflectStaticSizeCompositeField int
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func init() {
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var cf CompositeField
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reflectStaticSizeCompositeField = int(reflect.TypeOf(cf).Size())
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}
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const DefaultCompositeIndexingOptions = IndexField
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type CompositeField struct {
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name string
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includedFields map[string]bool
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excludedFields map[string]bool
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defaultInclude bool
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options IndexingOptions
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totalLength int
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compositeFrequencies analysis.TokenFrequencies
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}
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func NewCompositeField(name string, defaultInclude bool, include []string, exclude []string) *CompositeField {
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return NewCompositeFieldWithIndexingOptions(name, defaultInclude, include, exclude, DefaultCompositeIndexingOptions)
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}
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func NewCompositeFieldWithIndexingOptions(name string, defaultInclude bool, include []string, exclude []string, options IndexingOptions) *CompositeField {
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rv := &CompositeField{
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name: name,
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options: options,
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defaultInclude: defaultInclude,
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includedFields: make(map[string]bool, len(include)),
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excludedFields: make(map[string]bool, len(exclude)),
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compositeFrequencies: make(analysis.TokenFrequencies),
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}
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for _, i := range include {
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rv.includedFields[i] = true
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}
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for _, e := range exclude {
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rv.excludedFields[e] = true
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}
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return rv
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}
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func (c *CompositeField) Name() string {
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return c.name
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}
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func (c *CompositeField) ArrayPositions() []uint64 {
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return []uint64{}
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}
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func (c *CompositeField) Options() IndexingOptions {
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return c.options
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}
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func (c *CompositeField) Analyze() (int, analysis.TokenFrequencies) {
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return c.totalLength, c.compositeFrequencies
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}
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func (c *CompositeField) Value() []byte {
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return []byte{}
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}
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func (c *CompositeField) NumPlainTextBytes() uint64 {
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return 0
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}
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func (c *CompositeField) includesField(field string) bool {
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shouldInclude := c.defaultInclude
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_, fieldShouldBeIncluded := c.includedFields[field]
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if fieldShouldBeIncluded {
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shouldInclude = true
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}
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_, fieldShouldBeExcluded := c.excludedFields[field]
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if fieldShouldBeExcluded {
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shouldInclude = false
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}
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return shouldInclude
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}
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func (c *CompositeField) Compose(field string, length int, freq analysis.TokenFrequencies) {
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if c.includesField(field) {
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c.totalLength += length
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c.compositeFrequencies.MergeAll(field, freq)
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}
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}
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