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Commit9d7ded0

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Avoid unportable usage of sscanf(UINT64_FORMAT).
On Mingw, it seems that scanf() doesn't necessarily accept the same formatcodes that printf() does, and in particular it may fail to recognize %llueven though printf() does. Since configure only probes printf() behaviorwhile setting up the INT64_FORMAT macros, this means it's unsafe to usethose macros with scanf(). We had only one instance of such a codingpattern, in contrib/pg_stat_statements, so change that code to avoidthe problem.Per buildfarm warnings. Back-patch to 9.0 where the troublesome codewas introduced.Michael Paquier
1 parentbf2e70b commit9d7ded0

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‎contrib/pg_stat_statements/pg_stat_statements.c

Lines changed: 10 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -962,7 +962,7 @@ pgss_ProcessUtility(Node *parsetree, const char *queryString,
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{
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instr_timestart;
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instr_timeduration;
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uint64rows=0;
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uint64rows;
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BufferUsagebufusage_start,
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bufusage;
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uint32queryId;
@@ -995,7 +995,15 @@ pgss_ProcessUtility(Node *parsetree, const char *queryString,
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/* parse command tag to retrieve the number of affected rows. */
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if (completionTag&&
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sscanf(completionTag,"COPY "UINT64_FORMAT,&rows)!=1)
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strncmp(completionTag,"COPY ",5)==0)
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{
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#ifdefHAVE_STRTOULL
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rows=strtoull(completionTag+5,NULL,10);
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#else
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rows=strtoul(completionTag+5,NULL,10);
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#endif
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}
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else
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rows=0;
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/* calc differences of buffer counters. */

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