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Help Center/ GaussDB(DWS)/ SQL Syntax Reference (8.1.3.x)/ Full Text Search/ Introduction/ Limitations

Limitations

Updated on 2023-04-03 GMT+08:00

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The current limitations of GaussDB(DWS)'s full text search are:

The length of each lexeme must be less than 2 KB.
The length of a tsvector (lexemes + positions) must be less than 1 megabyte.
Position values in tsvector must be greater than 0 and no more than 16383.
No more than 256 positions per lexeme. Excessive positions, if any, will be discarded.
The number of nodes (lexemes + operators) in a tsquery must be less than 32768.

Parent topic: Introduction

Previous topic: Configurations

Next topic: Searching for Texts in Database Tables

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