Commit12e6c5a

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Fix rescan of IndexScan node with the new lossy GiST distance functions.

Must reset the "reached end" flag and reorder queue at rescan.Per report from Regina Obe, bug #13349

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Original file line number	Diff line number	Diff line change
`@@ -532,10 +532,18 @@ ExecReScanIndexScan(IndexScanState *node)`
`532`	`532`	`}`
`533`	`533`	`node->iss_RuntimeKeysReady= true;`
`534`	`534`
	`535`	`+/* flush the reorder queue */`
	`536`	`+if (node->iss_ReorderQueue)`
	`537`	`+{`
	`538`	`+while (!pairingheap_is_empty(node->iss_ReorderQueue))`
	`539`	`+reorderqueue_pop(node);`
	`540`	`+}`
	`541`	`+`
`535`	`542`	`/* reset index scan */`
`536`	`543`	`index_rescan(node->iss_ScanDesc,`
`537`	`544`	`node->iss_ScanKeys,node->iss_NumScanKeys,`
`538`	`545`	`node->iss_OrderByKeys,node->iss_NumOrderByKeys);`
	`546`	`+node->iss_ReachedEnd= false;`
`539`	`547`
`540`	`548`	`ExecScanReScan(&node->ss);`
`541`	`549`	`}`

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