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Repair RI trigger visibility problems (this time for sure ;-)) per recent

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discussion on pgsql-hackers: in READ COMMITTED mode we just have to force
a QuerySnapshot update in the trigger, but in SERIALIZABLE mode we have
to run the scan under a current snapshot and then complain if any rows
would be updated/deleted that are not visible in the transaction snapshot.
This commit is contained in:
Tom Lane
2003-10-01 21:30:53 +00:00
parent 6099bc03f3
commit 55d85f42a8
15 changed files with 210 additions and 84 deletions
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6
src/include/executor/spi.h
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@ -2,7 +2,7 @@
*
* spi.h
*
* $Id: spi.h,v 1.38 2003/09/25 18:58:36 tgl Exp $
* $Id: spi.h,v 1.39 2003/10/01 21:30:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -84,8 +84,8 @@ extern void SPI_pop(void);
extern int SPI_exec(const char *src, int tcount);
extern int SPI_execp(void *plan, Datum *values, const char *Nulls,
int tcount);
extern int SPI_execp_now(void *plan, Datum *values, const char *Nulls,
int tcount);
extern int SPI_execp_current(void *plan, Datum *values, const char *Nulls,
bool useCurrentSnapshot, int tcount);
extern void *SPI_prepare(const char *src, int nargs, Oid *argtypes);
extern void *SPI_saveplan(void *plan);
extern int SPI_freeplan(void *plan);