index bf754ea6d0d98de696090376b64588bd93d9a0cc..710e4015b3d86ab457acbce7de9eaf6d4d662987 100644 (file)
@@ -169,6 +169,7 @@ gistvacuumscan(IndexVacuumInfo *info, GistBulkDeleteResult *stats,
BlockNumber num_pages;
bool needLock;
BlockNumber blkno;
+ MemoryContext oldctx;
/*
* Reset counts that will be incremented during the scan; needed in case
@@ -179,8 +180,17 @@ gistvacuumscan(IndexVacuumInfo *info, GistBulkDeleteResult *stats,
stats->stats.pages_deleted = 0;
stats->stats.pages_free = 0;
MemoryContextReset(stats->page_set_context);
+
+ /*
+ * Create the integer sets to remember all the internal and the empty leaf
+ * pages in page_set_context. Internally, the integer set will remember
+ * this context so that the subsequent allocations for these integer sets
+ * will be done from the same context.
+ */
+ oldctx = MemoryContextSwitchTo(stats->page_set_context);
stats->internal_page_set = intset_create();
stats->empty_leaf_set = intset_create();
+ MemoryContextSwitchTo(oldctx);
/* Set up info to pass down to gistvacuumpage */
vstate.info = info;