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Commit64719a1

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Use a 'datallowconn' check for avoiding 'template0', rather than
hardcoding a 'template0' check, per suggestion from Alvaro.This might fix a problem where someone has allowed 'template0'connections, but it is a cleaner approach even if doesn't fix thebug.
1 parent60e7f45 commit64719a1

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‎contrib/pg_upgrade/pg_upgrade.c‎

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -304,15 +304,14 @@ set_frozenxids(migratorContext *ctx)
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PQclear(executeQueryOrDie(ctx,conn,
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"UPDATE pg_catalog.pg_database "
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"SETdatfrozenxid = '%u' "
307-
/* cannot connect to 'template0', so ignore */
308-
"WHEREdatname != 'template0'",
307+
"WHERE datallowconn = true",
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ctx->old.controldata.chkpnt_nxtxid));
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/* get database names */
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dbres=executeQueryOrDie(ctx,conn,
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"SELECTdatname "
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"FROMpg_catalog.pg_database "
315-
"WHEREdatname != 'template0'");
314+
"WHERE datallowconn = true");
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/* free dbres below */
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PQfinish(conn);

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