ElasticSearch Query DSL - Revision history

Admin at 12:17, 23 January 2013

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Admin at 10:48, 23 January 2013

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Admin: Created page with "ES's Query DSL is a language for specifying queries in JSON. == Queries == == Filters =="

2013-01-23T10:45:51Z

Created page with "ES's Query DSL is a language for specifying queries in JSON. == Queries == == Filters =="

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ES's Query DSL is a language for specifying queries in JSON.

== Queries ==

== Filters ==

@@ Line 17: / Line 17: @@
 By default, terms are OR'ed; to '''AND''' them:
 <pre>{
      "match" : {
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 Uses query parser in order to parse its content.
 <pre>{
      "query_string" : {
@@ Line 162: / Line 160: @@
 === range ===
 == Filters ==

← Older revision		Revision as of 11:40, 23 January 2013
Line 135:		Line 135:

	=== query_string ===		=== query_string ===
		+
		+	Uses query parser in order to parse its content.
		+
		+	<pre>{
		+	"query_string" : {
		+	"default_field" : "content",
		+	"query" : "this AND that OR thus"
		+	}
		+	}</pre>
		+
		+	==== Parameters ====
		+
		+	* ''query'' - actual query to be parsed.
		+	* ''default_field'' - default field for query terms (if no prefix field specified); default ''index.query.default_field'' settings, which defaults to ''_all'',
		+	* ''fields'' - run query against multiple fields (provided as array):
		+	** <tt>"fields" : ["content", "name"]</tt>,
		+	** optionally with boosting: <tt>"fields" : ["content", "name^5"]</tt>,
		+	** wildcards may be used for fields: <tt>"fields" : ["city.*"]</tt> if document contains object ''city'',
		+	** to check for existence of nonexistence of fields, use: <tt>_exists_:field1</tt> and <tt>_missing_:field</tt>,
		+	* ''default_operator'' - default operator used (if none explicitly specified); e.g. with default operator ''OR'', the query "capital of Hungary" is translated to "capital OR of OR Hungary"; default is ''OR'',
		+	* ''allow_leading_wildcard'' - are '''*''' or '''?''' allowed as the first character? default ''true'',
		+	* ''lowercase_expanded_terms'' - should terms of wildcard, prefix, fuzzy, and range queries be automatically lower-cased? (since they are not analyzed); default ''true'',
		+	* ''boost'' - boost value of the query; default 1.0,
		+	* ''minimum_should_match'' - percent value ("20%") controlling how many "should" clauses in the resulting boolean query should match,
		+	* ''lenient'' - if true, format based failures (like providing text to a numeric field) to be ignored.

	=== range ===		=== range ===

@@ Line 51: / Line 51: @@
 === bool ===
 === boosting ===
 === ids ===
 === field ===
 === filtered ===
 === query_string ===

@@ Line 5: / Line 5: @@
 == Queries ==
-=== match ===
+=== match, multi_match ===
-=== multi_match ===
+The ''match'' queries accept, analyze, and construct query out of text/numeric/date. The match family of queries does not go through a "query parsing" process. It does not support field name prefixes, wildcard characters, or other "advance" features.
 === bool ===

← Older revision		Revision as of 10:48, 23 January 2013
Line 1:		Line 1:
		+	[http://www.elasticsearch.org/guide/reference/query-dsl/ official documentation]
		+
	ES's Query DSL is a language for specifying queries in JSON.		ES's Query DSL is a language for specifying queries in JSON.