Re: BUG #13875: Error explaining query

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: travis(dot)smith(at)iriworldwide(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #13875: Error explaining query
Date: 2016-01-19 04:17:40
Message-ID: 29170.1453177060@sss.pgh.pa.us
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travis(dot)smith(at)iriworldwide(dot)com writes:
> =# explain select count(1) from (SELECT DISTINCT
> "IRI_IT_M_2782_7472_O"."ATTR_VALUE", "IRI_IT_M_2782_7472_O"."SORT_ORDER",
> "IT_DIM_IRI_7472"."M_2796_KEY", "IT_DIM_IRI_7472"."M_2782_KEY" FROM
> "IT_DIM_IRI_7472", "IRI_IT_M_2782_7472_O" WHERE
> ("IT_DIM_IRI_7472"."S_848_KEY" = 4527492) AND
> ("IT_DIM_IRI_7472"."M_2782_KEY" = "IRI_IT_M_2782_7472_O"."AVP_KEY") ORDER BY
> "IT_DIM_IRI_7472"."M_2796_KEY" ASC, "IRI_IT_M_2782_7472_O"."SORT_ORDER" ASC,
> "IT_DIM_IRI_7472"."M_2782_KEY" ASC ) t;

> ERROR: variable not found in subplan target list

What I get is

ERROR: relation "IT_DIM_IRI_7472" does not exist
LINE 4: "IT_DIM_IRI_7472", "IRI_IT_M_2782_7472_O" WHERE
^

This does indeed sound like a bug, but without a self-contained
test case, there's not a lot we can do about it.

regards, tom lane

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