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Commit677fde0

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Minor robustness improvements for isolationtester.
Notice and complain about PQcancel() failures. Also, don't dump core ifan error PGresult doesn't contain severity and message subfields, as itmight not if it was generated by libpq itself. (We have a longstandingTODO item to improve that, but in the meantime isolationtester had bettercope.)I tripped across the latter item while investigating a trouble report onbuildfarm member spoonbill. As for the former, there's no evidence thatPQcancel failure is actually involved in spoonbill's problem, but it stillseems like a bad idea to ignore an error return code.
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‎src/test/isolation/isolationtester.c

Lines changed: 16 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -311,9 +311,22 @@ run_permutation(TestSpec * testspec, int nsteps, Step ** steps)
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break;
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casePGRES_FATAL_ERROR:
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/* Detail may contain xid values, so just show primary. */
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printf("%s: %s\n",PQresultErrorField(res,PG_DIAG_SEVERITY),
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PQresultErrorField(res,PG_DIAG_MESSAGE_PRIMARY));
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/*
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* Detail may contain XID values, so we want to just show
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* primary. Beware however that libpq-generated error results
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* may not contain subfields, only an old-style message.
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*/
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{
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constchar*sev=PQresultErrorField(res,
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PG_DIAG_SEVERITY);
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constchar*msg=PQresultErrorField(res,
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PG_DIAG_MESSAGE_PRIMARY);
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if (sev&&msg)
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printf("%s: %s\n",sev,msg);
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else
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printf("%s",PQresultErrorMessage(res));
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}
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break;
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default:

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