v6.3 snapshot core dump

Brett McCormick wrote:

this is the latest snapshot under linux 2.0.33

when I create a view with an aggregate such as count (with a group by
clause) I get a core dump. The first three lines of the gdb backtrace
follows:

...

201 *isNull = econtext->ecxt_nulls[agg->aggno];

econtext->ecxt_nulls, is, well, a NULL pointer and hard to index :)
i'll take a look but I don't think I'll find it -- i notice that 6.2.1
pretends to make a view with aggregates but then it comes up empty
when selected.

--brett
let me know if you need more info

Did this work in previous 6.3 snapshots ?

Vadim

On Fri, 13 February 1998, at 19:11:26, Vadim B. Mikheev wrote:

econtext->ecxt_nulls, is, well, a NULL pointer and hard to index :)
i'll take a look but I don't think I'll find it -- i notice that 6.2.1
pretends to make a view with aggregates but then it comes up empty
when selected.

--brett
let me know if you need more info

Did this work in previous 6.3 snapshots ?

Vadim

I never attempted it before.

I will look into this. I made many fixes in 6.3 for aggregates and
views, but I did not test views of aggregates. I will do that soon.

Good test case.

this is the latest snapshot under linux 2.0.33

when I create a view with an aggregate such as count (with a group by
clause) I get a core dump. The first three lines of the gdb backtrace
follows:

#0 0x80a9982 in ExecEvalAggreg (agg=0x820fa20, econtext=0x8213a48,
isNull=0xbfffd6cf "") at execQual.c:201
#1 0x80ab271 in ExecEvalExpr (expression=0x820fa20, econtext=0x8213a48,
isNull=0xbfffd6cf "", isDone=0xbfffd7c3 "\001\fZ\031\b\030K!\b")
at execQual.c:1199
#2 0x80ab69b in ExecTargetList (targetlist=0x8213498, nodomains=2,
targettype=0x8214990, values=0x8214b48, econtext=0x8213a48,
isDone=0xbfffd7c3 "\001\fZ\031\b\030K!\b") at execQual.c:1484

code at point:

201 *isNull = econtext->ecxt_nulls[agg->aggno];

econtext->ecxt_nulls, is, well, a NULL pointer and hard to index :)
i'll take a look but I don't think I'll find it -- i notice that 6.2.1
pretends to make a view with aggregates but then it comes up empty
when selected.

--brett
let me know if you need more info

--
Bruce Momjian
maillist@candle.pha.pa.us