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ST_Estimated_Extent: make exception message about lack of stats clearer

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git-svn-id: http://svn.osgeo.org/postgis/trunk@6773 b70326c6-7e19-0410-871a-916f4a2858ee
This commit is contained in:
Sandro Santilli 2011-02-01 13:53:48 +00:00
parent 4bb089e777
commit 3b7b8fc4a6
1 changed files with 9 additions and 4 deletions
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11
postgis/lwgeom_estimate.c
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@ -1455,13 +1455,18 @@ Datum LWGEOM_estimated_extent(PG_FUNCTION_ARGS)
elog(ERROR,"LWGEOM_estimated_extent: couldnt execute sql via SPI"); elog(ERROR,"LWGEOM_estimated_extent: couldnt execute sql via SPI");
PG_RETURN_NULL(); PG_RETURN_NULL();
} }
if (SPI_processed != 1) if (SPI_processed < 1)
{ {
SPI_finish(); SPI_finish();
POSTGIS_DEBUGF(3, " %d stat rows", SPI_processed); POSTGIS_DEBUGF(3, " %d stat rows", SPI_processed);
elog(ERROR, "LWGEOM_estimated_extent: couldn't locate table within current schema"); /*
* Would be nice to be able to distinguish between
* empty and missing analyze, as in the empty case
* we'd have an informed estimate of an empty box...
*/
elog(ERROR, "LWGEOM_estimated_extent: no statistics for \"%s\".\"%s\".\"%s\" (empty table ? did you run ANALYZE ?)", nsp ? nsp : "(current_schema)", tbl, col);
PG_RETURN_NULL() ; PG_RETURN_NULL() ;
} }
@ -1476,7 +1481,7 @@ Datum LWGEOM_estimated_extent(PG_FUNCTION_ARGS)
POSTGIS_DEBUG(3, " stats are NULL"); POSTGIS_DEBUG(3, " stats are NULL");
elog(ERROR, "LWGEOM_estimated_extent: couldn't locate statistics for table"); elog(ERROR, "LWGEOM_estimated_extent: NULL statistics for \"%s\".\"%s\".\"%s\" (should not happen, consider filing a bug)", nsp ? nsp : "(current_schema)", tbl, col);
PG_RETURN_NULL(); PG_RETURN_NULL();
} }