Re: Optimizer Bug of Debug Version - Mailing list pgsql-bugs

From Tom Lane
Subject Re: Optimizer Bug of Debug Version
Date
Msg-id 4530.1158676572@sss.pgh.pa.us
Whole thread Raw
In response to Optimizer Bug of Debug Version  ("Jackie Leng" <lengjianquan@163.com>)
List pgsql-bugs
"Jackie Leng" <lengjianquan@163.com> writes:
> In 8.1, if we execute the following queries on an debug version:

> create table t(a int,b int);
> create index ttt on t(a,b);
> explain select * from t t1,t t2 where (t1.a=1 and t2.b in (1,2)) or (t1.a=2
> and t2.b in (3,4));

> The server will halt in function "generate_bitmap_or_paths".Seems that
> "create_or_index_quals" produces OR-of-OR quals, which is not allowed in
> this phase.

Please update to 8.1.4.

            regards, tom lane

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