From: | Rajesh Kumar Mallah <mallah(at)trade-india(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Comparing tsearch2 vectors. |
Date: | 2004-07-12 08:46:06 |
Message-ID: | 40F24FCE.3020103@trade-india.com |
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Thread: | |
Lists: | pgsql-sql |
Hi,
We want to compare strings after stemming. Can anyone
tell me what is the best method. I was thinking to compare
the tsvector ,but there is no operator for that.
Regds
Mallah.
tradein_clients=# SELECT to_tsvector('handicraft exporters');
+---------------------------+
| to_tsvector |
+---------------------------+
| 'export':2 'handicraft':1 |
+---------------------------+
(1 row)
Time: 710.315 ms
tradein_clients=#
tradein_clients=# SELECT to_tsvector('handicrafts exporter');
+---------------------------+
| to_tsvector |
+---------------------------+
| 'export':2 'handicraft':1 |
+---------------------------+
(1 row)
Time: 400.679 ms
tradein_clients=# SELECT to_tsvector('Hi there') = to_tsvector('Hi there');
ERROR: operator does not exist: tsvector = tsvector
HINT: No operator matches the given name and argument type(s). You may
need to add explicit type casts.
tradein_clients=#
--
regds
Mallah.
Rajesh Kumar Mallah
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