1. DSL review
It's been two or three months since the last time I knocked on DSL, try again this time
What is the query as follows? The query is a product whose title contains no stock from Huawei and whose brand id is 6 or 8.
Knowledge point: Combine query uses bool, match to search after word segmentation, term uses a whole keyword to search without word segmentation, filter does not calculate any score, and does not care about the sorting problem returned, so
It will be a bit more efficient than must
GET product/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"skuTitle": "华为"
}
}
],
"filter": [
{
"term": {
"hasStock": "false"
}
},
{
"terms": {
"brandId": [
"6",
"10"
]
}
}
]
}
}
}2. The embedded attribute is a conditional query
When we add the following selected part, we find that the query result is empty, why, because the attribute is embedded
When using embedded attributes as a condition
We search like the following, the value of path is the attribute name
The good modification is as follows
GET product/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"skuTitle": "华为"
}
}
],
"filter": [
{
"term": {
"hasStock": "false"
}
},
{
"terms": {
"brandId": [
"6",
"10"
]
}
},{
"nested": {
"path": "attrs",
"query": {
"bool": {
"must": [
{
"term": {
"attrs.attrId": {
"value": "1"
}
}
}
]
}
}
}
}
]
}
}
}3. Sort
Add a sort object after the query object, specify the object name and ascending order, you can specify multiple sort objects
4. Price range
5. Pagination
Start from 0, take the first two records
6. Title highlighting
Highlight and package a part of the content, here is to make the font red
You can see that the word Huawei on the right is wrapped up
7. The final DSL statement
Basically, it corresponds to the query conditions in our previous article, so that we can add basic query conditions and basic DSL. The next section will talk about aggregation analysis, which is similar to grouping in sql.
GET product/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"skuTitle": "华为"
}
}
],
"filter": [
{
"term": {
"hasStock": "false"
}
},
{
"terms": {
"brandId": [
"6",
"10"
]
}
},{
"nested": {
"path": "attrs",
"query": {
"bool": {
"must": [
{
"term": {
"attrs.attrId": {
"value": "1"
}
}
}
]
}
}
}
},{
"range": {
"skuPrice": {
"gte": 0,
"lte": 4000
}
}
}
]
}
},
"sort": [
{
"skuPrice": {
"order": "desc"
}
}
],
"from": 0,
"size": 2,
"highlight": {
"fields": {"skuTitle": {}},
"pre_tags": "<b style='color:red'>",
"post_tags": "</b>"
}
}