Limitations

The current limitations of openGauss's text search features 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.