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	The prior commit declared them centrally. Author: Andres Freund <andres@anarazel.de> Reviewed-By: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/20211101020311.av6hphdl6xbjbuif@alap3.anarazel.de
		
			
				
	
	
		
			59 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#include "postgres.h"
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#include "fmgr.h"
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#include "ltree/ltree.h"
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#include "plpython.h"
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PG_MODULE_MAGIC;
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/* Linkage to functions in plpython module */
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typedef PyObject *(*PLyUnicode_FromStringAndSize_t) (const char *s, Py_ssize_t size);
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static PLyUnicode_FromStringAndSize_t PLyUnicode_FromStringAndSize_p;
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/*
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 * Module initialize function: fetch function pointers for cross-module calls.
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 */
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void
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_PG_init(void)
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{
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	/* Asserts verify that typedefs above match original declarations */
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	AssertVariableIsOfType(&PLyUnicode_FromStringAndSize, PLyUnicode_FromStringAndSize_t);
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	PLyUnicode_FromStringAndSize_p = (PLyUnicode_FromStringAndSize_t)
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		load_external_function("$libdir/" PLPYTHON_LIBNAME, "PLyUnicode_FromStringAndSize",
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							   true, NULL);
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}
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/* These defines must be after the module init function */
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#define PLyUnicode_FromStringAndSize PLyUnicode_FromStringAndSize_p
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PG_FUNCTION_INFO_V1(ltree_to_plpython);
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Datum
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ltree_to_plpython(PG_FUNCTION_ARGS)
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{
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	ltree	   *in = PG_GETARG_LTREE_P(0);
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	int			i;
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	PyObject   *list;
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	ltree_level *curlevel;
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	list = PyList_New(in->numlevel);
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	if (!list)
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		ereport(ERROR,
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				(errcode(ERRCODE_OUT_OF_MEMORY),
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				 errmsg("out of memory")));
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	curlevel = LTREE_FIRST(in);
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	for (i = 0; i < in->numlevel; i++)
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	{
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		PyList_SetItem(list, i, PLyUnicode_FromStringAndSize(curlevel->name, curlevel->len));
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		curlevel = LEVEL_NEXT(curlevel);
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	}
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	PG_FREE_IF_COPY(in, 0);
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	return PointerGetDatum(list);
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}
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