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SPI_cursor_fetch -- fetch some rows from a
void SPI_cursor_fetch(Portal portal, bool forward, long count)
SPI_cursor_fetch fetches some
rows from a cursor. This is equivalent to a subset of the SQL
command FETCH (see
SPI_scroll_cursor_fetch for more
- Portal portal
portal containing the cursor
- bool forward
true for fetch forward, false for fetch backward
- long count
maximum number of rows to fetch
SPI_processed and SPI_tuptable are set as in
SPI_execute if successful.
Fetching backward may fail if the cursor's plan was not
created with the CURSOR_OPT_SCROLL