Hi all,
First, some problem background, I'm trying to search a list of words in a
field that usually contains a list of string. All provided words must be
present.
If I'm using a match query filter with operator AND, I get all the
documents whose field contain all the provided words, but not necessarily
within a single string.
"filter": {
"fquery": {
"query": {
"match": {
"fieldname": {
"query": "word1 word2",
"type": "boolean",
"operator": "AND"
}
}
},
"_cache": true
}
}
Standard way of solving this problem is, I assume, turning this field into
a nested document; But since supporting nested documents will require
significant development I'm looking for a stopgap measure.
I've been trying to filter out "false positives" by ANDing a regexp filter
to the existing match query filter:
"filter": {
"and": {
"filters": [
{
"fquery": {
"query": {
"match": {
"fieldname": {
"query": "word1 word2",
"type": "boolean",
"operator": "AND"
}
}
},
"_cache": true
}
},
{
"regexp": {
"fieldname": {
"value": "@word1@&@word2@"
}
}
}
]
}
}
Problem is, as soon as I use "&" in the regular expression, I do not get
any hit; Explicitly setting regexp flags to ALL or some combination
involving INTERSECTION does not help.
Did I miss something, or can somebody confirm the issue?
This is with Elasticsearch 1.0.1.
Regards,
Pierre.
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