Hello everybody,
I was working on fetching data from elasticsearch index.
I wanted to filter out documents that contain null or empty string values
in certain columns.
Yet when I used either "missing" or "exists" methods I faced some issues
with values = "" as they were not filtered out and showed in the results
I thought of using wildcard instead but then it gave no results when
dealing with columns that had multiple words in their ID (ex: Alarm
Description,Alarm ID,...etc)
Working on elasticsearch-1.3.2
My code with missing/exists :
{
"query" : {
"constant_score" : {
"filter" : {
"exists" : {
"field" : "myfield"
}
}
}
}
}
My code with wildcard:
{
- query: {
- bool: {
- must: [
- {
- constant_score: {
- filter: {
- missing: {
- field: trap_message.enterprise
}
}
}
}
]
- must_not: [ ]
- should: [ ]
}
}
- from: 0
- size: 10
- sort: [ ]
- facets: { }
}
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