Andreas Seltenreich <seltenreich@gmx.de> writes:
> the query below triggers an assertion in TS_phrase_execute. Testing was
> done on master at dbdfd11.
> -- TRAP: FailedAssertion("!(curitem->qoperator.oper == 4)", File: "tsvector_op.c", Line: 1432)
> select 'moscow' @@
> ts_rewrite('moscow', 'moscow',
> ts_rewrite(
> tsquery_phrase('moscow','moscow'),
> 'moscow',
> $$ 'sanct' & 'peter'$$));
Hmm. If you run the ts_rewrite alone, it prints
regression=# select ts_rewrite('moscow', 'moscow', ts_rewrite( tsquery_phrase('moscow','moscow'),
'moscow', $$ 'sanct' & 'peter'$$)); ts_rewrite
-------------------------------------------------( 'sanct' & 'peter' ) <-> ( 'sanct' & 'peter' )
(1 row)
and if you put that in explicitly, all's well:
regression=# select 'moscow' @@ $$( 'sanct' & 'peter' ) <-> ( 'sanct' & 'peter' )$$::tsquery;?column?
----------f
(1 row)
but I notice that some normalization seems to be getting done by
tsqueryin:
regression=# select $$( 'sanct' & 'peter' ) <-> ( 'sanct' & 'peter' )$$::tsquery;
tsquery
--------------------------------------------------------------------------------
-------'sanct' <-> 'sanct' & 'peter' <-> 'sanct' & 'sanct' <-> 'peter' & 'peter' <-> '
peter'
(1 row)
so this seems to boil down to ts_rewrite failing to apply required
normalization. Or maybe the normalization shouldn't be required.
regards, tom lane
