Function GenerateTermsCore

pg_documentdb/src/opclass/bson_gin_core.c:1670–1692

* GenerateTerms walks the bson document and for each path creates the term that will be * stored in the index for that term. Each term is of the form '{path}{typeCode}{value}' * i.e. a BsonElement. * Paths are represented as dot notation paths to facilitate faster query match behavior. * For objects, it recurses and generates nested terms as well. * For arrays, it recurses and generates both

 * e.g, a: [[10,{"b":1}]] . we will be generating term a.0.b : 1 but not a.0 : 10 beacuse first value in array is an integer and second one is document.
 */
static void
GenerateTermsCore(bson_iter_t *bsonIter, const char *basePath,
				  uint32_t basePathLength, bool inArrayContext,
				  bool isArrayTerm, GenerateTermsContext *context,
				  bool isCheckForArrayTermsWithNestedDocument)
{
	StringInfoData pathBuilderBuffer = { 0 };
	initStringInfo(&pathBuilderBuffer);
	check_stack_depth();
	CHECK_FOR_INTERRUPTS();
	while (bson_iter_next(bsonIter))
	{
		GenerateTermPath(bsonIter, basePath, basePathLength,
						 inArrayContext, isArrayTerm, context,
						 isCheckForArrayTermsWithNestedDocument,
						 &pathBuilderBuffer);
	}

	if (pathBuilderBuffer.data != NULL)
	{
		pfree(pathBuilderBuffer.data);
	}
}


/*