Query

Since GreptimeDB and Elasticsearch are designed for different purposes, many features are not compatible. We have provided corresponding alternatives as much as possible. For each specific interface, we will explain GreptimeDB's implementation and the differences from Elasticsearch.

tip

All features related to boost scores are not supported.

The _id field is not automatically added or maintained. If you need to use it, please include this field in your original data.

Using @timestamp as a time field is not supported.

It is not allowed to include both query and aggregation in the same request.

Query Syntax

match

In GreptimeDB, the match query is used to match one or more terms in a text field.

The following options are not supported: analyzer, auto_generate_synonyms_phrase_query, fuzziness, max_expansions, prefix_length, fuzzy_transpositions, fuzzy_rewrite, lenient, operator, minimum_should_match, zero_terms_query.

match_phrase

In GreptimeDB, the match_phrase query is used to match a phrase in a text field. Different queries are generated based on the data type. If the data type is text, it is converted to a LIKE query. For other data types, it is converted to an equivalent value query.

The following options are not supported: analyzer, auto_generate_synonyms_phrase_query, fuzziness, max_expansions, prefix_length, fuzzy_transpositions, fuzzy_rewrite, lenient, operator, minimum_should_match, zero_terms_query.

match_all

In GreptimeDB, the match_all query is used to match all documents.

term

In GreptimeDB, the term query is used to match an exact value in a text field. The query is mainly converted to an equality query.

Currently, case_insensitive is not supported.

prefix

In GreptimeDB, the prefix query is used to match a prefix in a text field. The query is mainly converted to a LIKE query. For example, if you query for text starting with yi, it will be converted to LIKE 'yi%'.

The following options are not supported: rewrite, case_insensitive.

range

In GreptimeDB, the range query is used to match a range in a text field. The query is mainly converted to greater than or equal to and less than or equal to conditions.

Currently, format, relation, time_zone, and boost are not supported.

exists

In GreptimeDB, the exists query is used to match values that exist in a text field. The query is mainly converted to an existence condition.

bool

In GreptimeDB, the bool query is used to match multiple query conditions. The query is mainly converted to a combination of AND and OR conditions.