SPIPlanPtr SPI_prepare_params(const char * command,
ParserSetupHook parserSetup,
void * parserSetupArg,
int cursorOptions)SPI_prepare_params creates and
returns a prepared statement for the specified command, but doesn't
execute the command. This function is equivalent to SPI_prepare_cursor, with the addition that the
caller can specify parser hook functions to control the parsing of
external parameter references.
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