Attempt to fix compiler warning.

robertmhaas · robertmhaas · commit edbe2a29365e · 2017-05-14T20:59:28.000-04:00
Per a report from Tom Lane, newer versions of gcc apparently think
that partexprs_item_saved can be used uninitialized.  Try to convince
them otherwise.
diff --git a/src/backend/catalog/partition.c b/src/backend/catalog/partition.c
@@ -1558,6 +1558,7 @@ get_qual_for_range(PartitionKey key, PartitionBoundSpec *spec)
 	 */
 	i = 0;
 	partexprs_item = list_head(key->partexprs);
+	partexprs_item_saved = partexprs_item;		/* placate compiler */
 	forboth(cell1, spec->lowerdatums, cell2, spec->upperdatums)
 	{
 		EState	   *estate;

Original file line number	Diff line number	Diff line change
`@@ -1558,6 +1558,7 @@ get_qual_for_range(PartitionKey key, PartitionBoundSpec *spec)`
`1558`	`1558`	`*/`
`1559`	`1559`	`i = 0;`
`1560`	`1560`	`partexprs_item = list_head(key->partexprs);`
	`1561`	`+ partexprs_item_saved = partexprs_item; /* placate compiler */`
`1561`	`1562`	`forboth(cell1, spec->lowerdatums, cell2, spec->upperdatums)`
`1562`	`1563`	`{`
`1563`	`1564`	`EState *estate;`