Knowledge Discovery 25.1
Knowledge Discovery Expert

# Text

The value of the `Text` parameter (known as the query text) in a query is interpreted as UQL (Unstructured Query Language). After it is interpreted, any query terms are matched against Index fields with Boolean and proximity operators applied. Any matches form part of the results set.

You can filter the results set by using a large number of other parameters, such as `MaxResults`, or FieldText, but the `Text` parameter defines the base results set.

- Query Syntax

- Wildcard Search

- Result Relevance and Ranks

## Maximum Length of Query Text

There is no maximum length of query text, but in extreme circumstances you might exceed several configurable limits:

- Maximum length of the entire action. This is controlled by the configuration parameter `MaxInputString`.

- Maximum number of terms processed in query text. This is controlled by the configuration or query parameter `MaxQueryTerms`.

- Maximum length of a single term. This is limited to 255 characters.

- Maximum length of a field restriction. This is limited to 511 characters.

In addition, if you send an extremely long query text, or a large number of very common terms, shortage of memory can also limit operations.

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Version 25.1 | Last updated January 2025

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Product: Knowledge Discovery 25.1

Topic Title: Text