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Commit16f42be

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Don't allow CREATE TABLE AS to put relations in pg_global.
This was never intended to be allowed, and is blocked for an ordinaryCREATE TABLE, but CREATE TABLE AS slipped through the cracks. Thiscommit won't do anything to fix existing cases where this has loopholehas been exploited, but it still seems prudent to lock it down goingforward.Back-branch commit only, as this problem has been refactored awayon the master branch.Andres Freund
1 parent04e9dc6 commit16f42be

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‎src/backend/executor/execMain.c

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@@ -43,6 +43,7 @@
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#include"access/xact.h"
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#include"catalog/heap.h"
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#include"catalog/namespace.h"
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#include"catalog/pg_tablespace.h"
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#include"catalog/toasting.h"
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#include"commands/tablespace.h"
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#include"commands/trigger.h"
@@ -2452,6 +2453,12 @@ OpenIntoRel(QueryDesc *queryDesc)
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get_tablespace_name(tablespaceId));
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}
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/* In all cases disallow placing user relations in pg_global */
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if (tablespaceId==GLOBALTABLESPACE_OID)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
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errmsg("only shared relations can be placed in pg_global tablespace")));
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/* Parse and validate any reloptions */
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reloptions=transformRelOptions((Datum)0,
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into->options,

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