pgstattuple: Use double consistently for percentages
pgstattuple uses data type double for other percentage calculations and exposes those values to the users via the float8 data type. However, scanned_percent in struct output_type is of type uint64, even though it is later returned via Float8GetDatum(). Change it to use double to be inline with other percentages. Author: Bharath Rupireddy Reviewed-by: Peter Eisentraut Discussion: https://www.postgresql.org/message-id/36ee692b-232f-0484-ce94-dc39d82021ad%40enterprisedb.com
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@ -38,7 +38,7 @@ Datum pgstattuple_approx_internal(Oid relid, FunctionCallInfo fcinfo);
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typedef struct output_type
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{
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uint64 table_len;
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uint64 scanned_percent;
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double scanned_percent;
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uint64 tuple_count;
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uint64 tuple_len;
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double tuple_percent;
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@ -203,7 +203,7 @@ statapprox_heap(Relation rel, output_type *stat)
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*/
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if (nblocks != 0)
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{
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stat->scanned_percent = 100 * scanned / nblocks;
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stat->scanned_percent = 100.0 * scanned / nblocks;
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stat->tuple_percent = 100.0 * stat->tuple_len / stat->table_len;
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stat->dead_tuple_percent = 100.0 * stat->dead_tuple_len / stat->table_len;
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stat->free_percent = 100.0 * stat->free_space / stat->table_len;
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