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Fix dblink and tablefunc to not return with the wrong CurrentMemoryContext.
Per buildfarm results.
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@ -378,11 +378,6 @@ crosstab(PG_FUNCTION_ARGS)
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/* create a function context for cross-call persistence */
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funcctx = SRF_FIRSTCALL_INIT();
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/*
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* switch to memory context appropriate for multiple function calls
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*/
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oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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/* Connect to SPI manager */
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if ((ret = SPI_connect()) < 0)
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/* internal error */
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@ -423,9 +418,6 @@ crosstab(PG_FUNCTION_ARGS)
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SRF_RETURN_DONE(funcctx);
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}
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/* SPI switches context on us, so reset it */
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MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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/* get a tuple descriptor for our result type */
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switch (get_call_result_type(fcinfo, NULL, &tupdesc))
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{
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@ -445,9 +437,6 @@ crosstab(PG_FUNCTION_ARGS)
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break;
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}
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/* make sure we have a persistent copy of the tupdesc */
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tupdesc = CreateTupleDescCopy(tupdesc);
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/*
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* Check that return tupdesc is compatible with the data we got from
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* SPI, at least based on number and type of attributes
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@ -458,6 +447,14 @@ crosstab(PG_FUNCTION_ARGS)
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errmsg("return and sql tuple descriptions are " \
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"incompatible")));
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/*
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* switch to memory context appropriate for multiple function calls
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*/
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oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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/* make sure we have a persistent copy of the tupdesc */
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tupdesc = CreateTupleDescCopy(tupdesc);
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/*
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* Generate attribute metadata needed later to produce tuples from raw
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* C strings
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